{"id":607,"date":"2015-07-09T04:24:49","date_gmt":"2015-07-09T04:24:49","guid":{"rendered":"http:\/\/www.davidpapkin.net\/?p=607"},"modified":"2015-07-09T04:24:49","modified_gmt":"2015-07-09T04:24:49","slug":"cisco-etherchannel-overview","status":"publish","type":"post","link":"https:\/\/davidpapkin.com\/?p=607","title":{"rendered":"Cisco Etherchannel Overview"},"content":{"rendered":"

EtherChannel Feature Overview<\/a><\/h3>\n

An EtherChannel bundles individual Ethernet links into a single logical link that provides the aggregate bandwidth of up to eight physical links.<\/p>\n

Cisco\u00a0IOS\u00a0Release\u00a012.2SX supports a maximum of 128\u00a0EtherChannels. You can form an EtherChannel with up to eight compatibly configured LAN ports on any switching module. All LAN ports in each EtherChannel must be the same speed and must all be configured as either Layer\u00a02 or Layer\u00a03 LAN ports.<\/p>\n

 <\/p>\n

Note <\/b>\"\"The network device to which a switch is connected may impose its own limits on the number of ports in an EtherChannel.<\/p>\n

\n

<\/a>If a segment within an EtherChannel fails, traffic previously carried over the failed link switches to the remaining segments within the EtherChannel. When a failure occurs, the EtherChannel feature sends a trap that identifies the switch, the EtherChannel, and the failed link. Inbound broadcast and multicast packets on one segment in an EtherChannel are blocked from returning on any other segment of the EtherChannel.<\/p>\n

Note <\/b>\"\"Make sure that the LAN ports are configured correctly (see the “EtherChannel Feature Configuration Guidelines and Restrictions” section<\/a>).<\/p>\n

\n

<\/a><\/a><\/a><\/p>\n

Configuring Port Channel Logical Interfaces for Layer\u00a03 EtherChannels<\/h3>\n
<\/div>\n
\n

<\/a><\/p>\n

Note<\/b>\"\"\u2022\"\"When configuring Layer\u00a02 EtherChannels, you cannot put Layer\u00a02 LAN ports into manually created port channel logical interfaces. If you are configuring a Layer\u00a02 EtherChannel, do not perform the procedures in this section (see the “Configuring Channel Groups” section<\/a>).<\/p>\n

<\/a><\/p>\n

\u2022\"\"When configuring Layer\u00a03 EtherChannels, you must manually create the port channel logical interface as described in this section, and then put the Layer\u00a03 LAN ports into the channel group (see the “Configuring Channel Groups” section<\/a>).<\/p>\n

<\/a><\/p>\n

\u2022\"\"To move an IP address from a Layer\u00a03 LAN port to an EtherChannel, you must delete the IP address from the Layer\u00a03 LAN port before configuring it on the port channel logical interface.<\/p>\n

\n

<\/a><\/a><\/p>\n

To create a port channel interface for a Layer\u00a03 EtherChannel, perform this task:<\/p>\n

<\/a><\/a><\/a><\/p>\n

\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n

Step\u00a01<\/p>\n<\/td>\n

<\/a><\/p>\n

Router(config)# interface port-channel <\/b>group_number<\/p>\n<\/td>\n

<\/a><\/p>\n

Creates the port channel interface.<\/p>\n<\/td>\n<\/tr>\n

<\/a><\/p>\n

Step\u00a02<\/p>\n<\/td>\n

<\/a><\/p>\n

Router(config-if)# ip address<\/b> ip_address mask<\/em><\/p>\n<\/td>\n

<\/a><\/p>\n

Assigns an IP address and subnet mask to the EtherChannel.<\/p>\n<\/td>\n<\/tr>\n

<\/a><\/p>\n

Step\u00a03<\/p>\n<\/td>\n

<\/a><\/p>\n

Router(config-if)# end<\/b><\/p>\n<\/td>\n

<\/a><\/p>\n

Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n

<\/a><\/p>\n

Step\u00a04<\/p>\n<\/td>\n

<\/a><\/p>\n

Router# show running-config interface port-channel <\/b>group_number<\/p>\n<\/td>\n

<\/a><\/p>\n

Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/a><\/p>\n

The group_number<\/em> can be 1 through 256, up to a maximum of 128 port-channel interfaces. This example shows how to create port channel interface 1:<\/p>\n

\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
\n
Router(config)# interface port-channel 1<\/b> \n<\/pre>\n<\/div>\n
\n
Router(config-if)# ip address 172.32.52.10 255.255.255.0<\/b> \n<\/pre>\n<\/div>\n
\n
Router(config-if)# end<\/b> \n<\/pre>\n<\/div>\n
<\/a>This example shows how to verify the configuration of port channel interface 1:<\/p>\n
\n
Router# show running-config interface port-channel 1<\/b> \n<\/pre>\n<\/div>\n
\n
Building configuration...\n<\/pre>\n<\/div>\n
\n
Current configuration:\n<\/pre>\n<\/div>\n
\n
!\n<\/pre>\n<\/div>\n
\n
interface Port-channel1\n<\/pre>\n<\/div>\n
\n
 ip address 172.32.52.10 255.255.255.0\n<\/pre>\n<\/div>\n
\n
 no ip directed-broadcast\n<\/pre>\n<\/div>\n
\n
end\n<\/pre>\n<\/div>\n
\n
Router#\n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/a><\/a><\/p>\n
Configuring Channel Groups<\/h3>\n
<\/div>\n
<\/a><\/p>\n
Note<\/b>\"\"\u2022\"\"When configuring Layer\u00a03 EtherChannels, you must manually create the port channel logical interface first (see the “Configuring Port Channel Logical Interfaces for Layer\u00a03 EtherChannels” section<\/a>), and then put the Layer\u00a03 LAN ports into the channel group as described in this section.<\/p>\n
<\/a><\/p>\n
\u2022\"\"When configuring Layer\u00a02 EtherChannels, configure the LAN ports with the channel-group<\/b> command as described in this section, which automatically creates the port channel logical interface. You cannot put Layer\u00a02 LAN ports into a manually created port channel interface.<\/p>\n
<\/a><\/p>\n
\u2022\"\"For Cisco IOS to create port channel interfaces for Layer\u00a02 EtherChannels, the Layer\u00a02 LAN ports must be connected and functioning.<\/p>\n
\n
<\/a><\/a><\/p>\n
To configure channel groups, perform this task for each LAN port:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Command<\/div>\n
<\/a><\/p>\n
Purpose<\/div>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n
<\/a><\/p>\n
Router(config)# interface<\/b> type<\/em>1<\/a> <\/sup>\u00a0slot\/port<\/em><\/p>\n
<\/a><\/p>\n
Selects a LAN port to configure.<\/p>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n
<\/a><\/p>\n
Router(config-if)# no ip address<\/b><\/p>\n
<\/a><\/p>\n
Ensures that there is no IP address assigned to the LAN port.<\/p>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n
<\/a><\/p>\n
Router(config-if)# channel-protocol<\/b> (lacp<\/b> |pagp<\/b>}<\/p>\n
<\/a><\/p>\n
(Optional) On the selected LAN port, restricts the channel-group<\/b> command to the EtherChannel protocol configured with the channel-protocol<\/b> command.<\/p>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n
<\/a><\/p>\n
Router(config-if)# channel-group <\/b>group_numbermode<\/b> {active<\/b> | auto<\/b> | desirable<\/b> | on<\/b> | passive<\/b>}<\/p>\n
<\/a><\/p>\n
Configures the LAN port in a port channel and specifies the mode (see Table\u00a019-1<\/a>). PAgP supports only the auto and desirable modes. LACP supports only the active and passive modes.<\/p>\n
<\/a><\/p>\n
Step\u00a05<\/p>\n
<\/a><\/p>\n
Router(config-if)# lacp port-priority<\/b>priority_value<\/p>\n
<\/a><\/p>\n
(Optional for LACP) Valid values are 1 through 65535. Higher numbers have lower priority. The default is 32768.<\/p>\n
<\/a><\/p>\n
Step\u00a06<\/p>\n
<\/a><\/p>\n
Router(config-if)# shutdown<\/span><\/p>\n
<\/a><\/p>\n
Disables the interface.<\/p>\n
<\/a><\/p>\n
Step\u00a07<\/p>\n
<\/a><\/p>\n
Router(config-if)# no shutdown<\/span><\/p>\n
<\/a><\/p>\n
Enables the interface.<\/p>\n
<\/a><\/p>\n
Step\u00a08<\/p>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n
<\/a><\/p>\n
Step\u00a09<\/p>\n
<\/a><\/p>\n
Router# show running-config interface<\/b> type<\/em>1<\/sup><\/a>slot\/port<\/em><\/p>\n
<\/a><\/p>\n
Router# show interfaces<\/b> type<\/em>1<\/sup><\/a> slot\/port<\/em>etherchannel<\/b><\/p>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n\n\n\n
<\/a><\/a><\/p>\n
1<\/a> <\/sup>type<\/em> = fastethernet<\/b>, gigabitethernet<\/b>, or tengigabitethernet<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/a><\/p>\n
This example shows how to configure Fast Ethernet ports 5\/6 and 5\/7 into port channel 2 with PAgP mode desirable<\/b>:<\/p>\n
<\/a><\/p>\n
\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# interface range fastethernet 5\/6 -7<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
\n
Router(config-if)# channel-group 2 mode desirable<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# shutdown\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# no shutdown\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# end<\/b> \n<\/pre>\n<\/div>\n
<\/div>\n
<\/a><\/p>\n
Note <\/b>\"\"See the “Configuring a Range of Interfaces” section<\/a> for information about the range<\/b> keyword.<\/p>\n
\n
<\/a><\/p>\n
This example shows how to verify the configuration of port channel interface 2:<\/p>\n
<\/a><\/p>\n
\n
Router# show running-config interface port-channel 2<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Building configuration...\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Current configuration:\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
!\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
interface Port-channel2\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 no ip address\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport access vlan 10\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport mode access\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
end\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router# \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration of Fast Ethernet port 5\/6:<\/p>\n
<\/a><\/p>\n
\n
Router# show running-config interface fastethernet 5\/6<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Building configuration...\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Current configuration:\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
!\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
interface FastEthernet5\/6\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 no ip address\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport access vlan 10\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 switchport mode access\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 channel-group 2 mode desirable\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
end\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router# show interfaces fastethernet 5\/6 etherchannel<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Port state    = Down Not-in-Bndl \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Channel group = 12          Mode = Desirable-Sl     Gcchange = 0\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Port-channel  = null        GC   = 0x00000000          Pseudo port-channel = Po1\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
2\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Port index    = 0           Load = 0x00        Protocol =   PAgP\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        A - Device is in Auto mode.        P - Device learns on physical port.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        d - PAgP is down.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Timers: H - Hello timer is running.        Q - Quit timer is running.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        S - Switching timer is running.    I - Interface timer is running.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Local information:\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
                                Hello    Partner  PAgP     Learning  Group\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Fa5\/2     d     U1\/S1           1s       0        128        Any      0\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Age of the port in the current state: 04d:18h:57m:19s\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration of port channel interface 2 after the LAN ports have been configured:<\/p>\n
<\/a><\/p>\n
\n
Router# show etherchannel 12 port-channel<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
                Port-channels in the group: \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
                ----------------------\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Port-channel: Po12\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
------------\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Age of the Port-channel   = 04d:18h:58m:50s\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Logical slot\/port   = 14\/1          Number of ports = 0\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
GC                  = 0x00000000      HotStandBy port = null\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Port state          = Port-channel Ag-Not-Inuse \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Protocol            =   PAgP\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Router# \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
Configuring the LACP System Priority and System ID<\/h3>\n
<\/a><\/p>\n
The LACP system ID is the combination of the LACP system priority value and the MAC address of the switch.<\/p>\n
<\/a><\/p>\n
To configure the LACP system priority and system ID, perform this task:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# lacp system-priority<\/b>priority_value<\/p>\n<\/td>\n
<\/a><\/p>\n
(Optional for LACP) Valid values are 1 through 65535. Higher numbers have lower priority. The default is 32768.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show lacp sys-id<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
This example shows how to configure the LACP system priority:<\/p>\n
<\/a><\/p>\n
\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
\n
Router(config)# lacp system-priority 23456\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# end<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration:<\/p>\n
<\/a><\/p>\n
\n
Router# show lacp sys-id<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
23456,0050.3e8d.6400\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router# \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
The system priority is displayed first, followed by the MAC address of the switch.<\/p>\n
<\/a><\/a><\/a><\/a><\/p>\n
Configuring EtherChannel Load Balancing<\/h3>\n
<\/a><\/p>\n
To configure EtherChannel load balancing, perform this task:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# port-channel per-module load-balance<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
(Optional) Enables the ability to specify the load-balancing method on a per-module basis.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# port-channel<\/b> load-balance<\/b> {src-mac<\/b> | dst-mac<\/b> | src-dst-mac<\/b> | src-ip<\/b> | dst-ip<\/b> | src-dst-ip<\/b> | src-port<\/b>| dst-port<\/b> | src-dst-port<\/b>} [module <\/b>slot]<\/p>\n<\/td>\n
<\/a><\/p>\n
Configures the EtherChannel load-balancing method. The method is globally applied to all port channels. Optionally, you can configure the load-balancing method for a specific module. The default method is src-dst-ip.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Router(config)# no<\/b> port-channel<\/b> load-balance<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Reverts to default EtherChannel load balancing.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show etherchannel load-balance<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
The load-balancing method keywords indicate the following information:<\/p>\n
<\/a><\/p>\n
\u2022\"\"dst-ip<\/b>\u2014Destination IP addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"dst-mac<\/b>\u2014Destination MAC addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"dst-port<\/b>\u2014Destination Layer 4 port<\/p>\n
<\/a><\/p>\n
\u2022\"\"mpls<\/b>\u2014Load balancing for MPLS packets<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-dst-ip<\/b>\u2014(Default) Source and destination IP addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-dst-mac<\/b>\u2014Source and destination MAC addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-dst-port<\/b>\u2014Source and destination Layer 4 port<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-ip<\/b>\u2014Source IP addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-mac<\/b>\u2014Source MAC addresses<\/p>\n
<\/a><\/p>\n
\u2022\"\"src-port<\/b>\u2014Source Layer 4 port<\/p>\n
<\/a><\/p>\n
The optional module<\/b> keyword allows you to specify the load-balancing method for a specific module. This capability is supported only on DFC-equipped switching modules. You must enable per-module load balancing globally before configuring the feature on a module.<\/p>\n
<\/a><\/p>\n
This example shows how to configure EtherChannel to use source and destination IP addresses:<\/p>\n
<\/a><\/p>\n
\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
\n
Router(config)# port-channel load-balance src-dst-ip<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# end<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration:<\/p>\n
<\/a><\/p>\n
\n
Router# show etherchannel load-balance<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
EtherChannel Load-Balancing Configuration:\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        src-dst-ip enhanced\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        mpls label-ip\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
EtherChannel Load-Balancing Addresses Used Per-Protocol:\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Non-IP: Source XOR Destination MAC address\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
  IPv4: Source XOR Destination IP address\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
  IPv6: Source XOR Destination IP address\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
  MPLS: Label or IP\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Router# \n<\/pre>\n<\/div>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"In this example, the enhanced<\/b> keyword indicates that PFC3C\/CXL hardware is installed and, as a result, VLAN information will also be included in the load-balancing method.<\/p>\n
\n
<\/a><\/a><\/a><\/p>\n
Configuring EtherChannel Hash-Distribution Algorithm<\/h3>\n
<\/a><\/p>\n
Releases earlier than 12.2(33)SXH support a load-distribution algorithm called the fixed algorithm. When you add a port to the EtherChannel or delete a port from the EtherChannel, the switch updates the port ASIC for each port in the EtherChannel, which causes a short outage on each port.<\/p>\n
<\/a><\/p>\n
Release 12.2(33)SXH and later releases support an additional algorithm called the adaptive algorithm. The adaptive algorithm does not need to update the port ASIC for existing member ports.<\/p>\n
<\/a><\/p>\n
The fixed algorithm is the default algorithm. You can configure a global value for the adaptive algorithm. You can also specify the algorithm for individual port channels.<\/p>\n
<\/a><\/p>\n
When you change the algorithm, the change is applied at the next member link event (link down, link up, addition, deletion, no shutdown, and shutdown). When you enter the command to change the algorithm, the command console issues a warning that the command does not take effect until the next member link event.<\/p>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"Some external devices require the fixed algorithm. For example, the service control engine (SCE) requires incoming and outgoing packets to use the same port.<\/p>\n
\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"If you change the load-balancing method, EtherChannel ports on DFC-equipped switching modules or on an active supervisor engine in a dual supervisor engine configuration will flap.<\/p>\n
\n
<\/a><\/a><\/a><\/p>\n
Configuring the Hash-Distribution Algorithm Globally<\/h3>\n
<\/a><\/p>\n
To configure the load-sharing algorithm globally, perform this task:<\/p>\n
<\/a><\/p>\n
\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# port-channel hash-distribution <\/b>{adaptive<\/b> | fixed}<\/p>\n<\/td>\n
<\/a><\/p>\n
Sets the hash distribution algorithm to adaptive or fixed.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
This example shows how to globally set the hash distribution to adaptive:<\/p>\n
<\/a><\/p>\n
\n
Router(config)# port-channel hash-distribution adaptive\n<\/b><\/pre>\n<\/div>\n
<\/a><\/a><\/p>\n
Configuring the Hash-Distribution Algorithm for a Port Channel<\/h3>\n
<\/a><\/p>\n
To configure the hash-distribution algorithm for a specific port channel, perform this task:<\/p>\n
<\/a><\/p>\n
\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# interface port-channel <\/b>channel-num<\/p>\n<\/td>\n
<\/a><\/p>\n
Enters interface configuration mode for the port channel.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# port-channel port hash-distribution <\/b>{adaptive<\/b> | fixed}<\/p>\n<\/td>\n
<\/a><\/p>\n
Sets the hash distribution algorithm for this interface<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits interface configuration mode.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
This example shows how to set the hash distribution algorithm to adaptive on port channel 10:<\/p>\n
<\/a><\/p>\n
\n
Router (config)# interface port-channel 10\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router (config-if)# port-channel port hash-distribution adaptive\n<\/b><\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/a><\/a><\/a><\/p>\n
Configuring the EtherChannel Min-Links Feature<\/h3>\n
<\/a><\/p>\n
The EtherChannel min-links feature is supported on LACP<\/a><\/span> EtherChannels. This feature allows you to configure the minimum number of member ports that must be in the link-up state and bundled in the EtherChannel for the port channel interface to transition to the link-up state. You can use the EtherChannel min-links feature to prevent low-bandwidth LACP EtherChannels from becoming active. This feature also causes LACP EtherChannels to become inactive if they have too few active member ports to supply your required minimum bandwidth. In addition, when LACP max-bundle values are specified in conjunction with min-links, the configuration is verified and an error message is returned if the min-links value is not compatible with (equal to or less than) the max-bundle value.<\/p>\n
<\/a><\/p>\n
To configure the EtherChannel min-links feature, perform this task:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# interface port-channel<\/b>group_number<\/p>\n<\/td>\n
<\/a><\/p>\n
Selects an LACP port channel interface.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# port-channel min-links<\/b> number<\/em><\/p>\n<\/td>\n
<\/a><\/p>\n
Configures the minimum number of member ports that must be in the link-up state and bundled in the EtherChannel for the port channel interface to transition to the link-up state.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show running-config interface<\/b>port-channel <\/b>group_number<\/p>\n
<\/a><\/p>\n
Router# show interfaces<\/b> type<\/em>1<\/a> <\/sup>slot\/port<\/em>etherchannel<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
<\/a><\/p>\n
1<\/a> <\/sup>type<\/em> = fastethernet<\/b>, gigabitethernet<\/b>, or tengigabitethernet<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"Although the EtherChannel min-links feature works correctly when configured only on one end of an EtherChannel, for best results, configure the same number of minimum links on both ends of the EtherChannel.<\/p>\n
\n
<\/a><\/p>\n
This example shows how to configure port channel interface 1 to be inactive if fewer than two member ports are active in the EtherChannel:<\/p>\n
<\/a><\/p>\n
\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# interface port-channel 1<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# port-channel min-links 2<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# end<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/a><\/p>\n
Configuring LACP 1:1 Redundancy<\/h3>\n
<\/a><\/p>\n
For the LACP 1:1 redundancy feature, the LACP EtherChannel must contain exactly two links, of which only one is active. The link with the lower port priority number (and therefore a higher priority) will be the active link, and the other link will be in a hot standby state. The LACP max-bundle must be set to 1.<\/p>\n
<\/a><\/p>\n
To configure the LACP 1:1 redundancy feature, perform this task:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# interface port-channel <\/b>group_number<\/p>\n<\/td>\n
<\/a><\/p>\n
Selects an LACP port channel interface.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# lacp fast-switchover<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Enables the fast switchover feature for this EtherChannel.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# lacp max-bundle 1<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Sets the maximum number of active member ports to be one.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show running-config interface<\/b> port-channel <\/b>group_number<\/p>\n
<\/a><\/p>\n
Router# show interfaces<\/b> type<\/em>1<\/a> <\/sup>slot\/port<\/em> etherchannel<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
<\/a><\/p>\n
1<\/a> <\/sup>type<\/em> = fastethernet<\/b>, gigabitethernet<\/b>, or tengigabitethernet<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"For the LACP 1:1 redundancy feature to work correctly, especially the fast switchover capability, the feature needs to be enabled at both ends of the EtherChannel.<\/p>\n
\n
<\/a><\/p>\n
This example shows how to configure an LACP EtherChannel with 1:1 redundancy. Because Fast Ethernet port 5\/6 is configured with a higher port priority number (and therefore a lower priority) than the default of 32768, it will be the standby port.<\/p>\n
<\/a><\/p>\n
\n
Router# configure terminal<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# lacp system-priority 33000\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# interface range fastethernet 5\/6 -7<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
\n
Router(config-if)# channel-protocol lacp\n<\/b><\/pre>\n<\/div>\n
<\/a><\/a><\/a><\/p>\n
\n
Router(config-if)# channel-group 1 mode active<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# interface fastethernet 5\/6 \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# lacp port-priority 33000\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config)# interface port-channel 1<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# lacp fast-switchover<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# lacp max-bundle 1<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# end<\/b> \n<\/pre>\n<\/div>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Tip <\/b>\"\"For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:<\/p>\n
<\/a><\/p>\n
http:\/\/www.cisco.com\/en\/US\/products\/hw\/switches\/ps708\/tsd_products_support_series_home.html<\/a><\/span><\/p>\n
\n
<\/a><\/a><\/a><\/a><\/a><\/a><\/p>\n
Configuring Auto Interleaved Port Priority For LACP Port Channels<\/h3>\n
<\/a><\/p>\n
To configure auto interleaved port priority for LACP on a port channel, perform this task on the port channel interface:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# interface port-channel<\/b> channel-group<\/p>\n<\/td>\n
<\/a><\/p>\n
Selects a port channel interface to configure.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# lacp active-port distribution automatic<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Configures the port channel to use interleaved port priority.<\/p>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"You need to perform a shutdown and no shutdown for interleaved port priority to be enabled.<\/p>\n
\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# shutdown<\/span><\/p>\n<\/td>\n
<\/a><\/p>\n
Disables the interface.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# no shutdown<\/span><\/p>\n<\/td>\n
<\/a><\/p>\n
Enables the interface.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a05<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a06<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show etherchannel<\/b> channel-group<\/em> port-channel<\/b><\/p>\n
<\/a><\/p>\n
Router# show etherchannel<\/b> channel-group<\/em> summary<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
This example shows how to configure auto interleaved port priority on a port channel:<\/p>\n
<\/a><\/p>\n
\n
Router(config)# interface port-channel23 \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# lacp active-port distribution automatic\n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Please shut\/no shut the port-channel for configuration to take effect immediately.\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# shutdown \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# no shutdown \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# end \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration of port channel interface 23:<\/p>\n
<\/a><\/p>\n
\n
Router# show running interfaces port-channel23 \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Building configuration... \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Current configuration : 81 bytes \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
!\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
interface Port-channel23 \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 no switchport \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 no ip address \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 lacp max-bundle 4 \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
 lacp active-port distribution automatic \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
end \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration of EtherChannel 23:<\/p>\n
<\/a><\/p>\n
\n
Router# show etherchannel 23 summary \n<\/b><\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Flags:  D - down        P - bundled in port-channel \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        I - stand-alone s - suspended \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        H - Hot-standby (LACP only) \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        R - Layer3      S - Layer2 \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        U - in use      N - not in use, no aggregation \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        f - failed to allocate aggregator \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
        M - not in use, no aggregation due to minimum links not met \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        m - not in use, port not aggregated due to minimum links not met \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        u - unsuitable for bundling \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
        d - default port \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
        w - waiting to be aggregated \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Number of channel-groups in use: 9 \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Number of aggregators:           9 \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Group  Port-channel  Protocol    Ports \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
------+-------------+-----------+--------------------------------------- \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
23     Po23(RU)        LACP      Gi1\/1\/21(P)    Gi1\/1\/22(P)    Gi1\/1\/23(H) \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
                                 Gi1\/1\/24(H)    Gi2\/1\/17(P)    Gi2\/1\/18(P) \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
                                 Gi2\/1\/19(H)    Gi2\/1\/20(H) \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
\n
Last applied Hash Distribution Algorithm: Fixed\n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
\"\"<\/div>\n
\n
<\/a><\/p>\n
Note <\/b>\"\"The above example shows that the four bundled ports are distributed 2 per chassis and slot.<\/p>\n
\n
<\/a><\/a><\/a><\/p>\n
Configuring LACP Port-Channel Standalone Disable<\/h3>\n
<\/a><\/p>\n
To disable the standalone EtherChannel member port state on a port channel (see Table\u00a019-2<\/a>), perform this task on the port channel interface:<\/p>\n
<\/a><\/a><\/a><\/p>\n
\n\n\n\n\n\n\n\n
\u00a0<\/caption>\n
\u00a0<\/a><\/th>\n<\/a><\/p>\n
Command<\/div>\n<\/th>\n
<\/a><\/p>\n
Purpose<\/div>\n<\/th>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a01<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config)# interface port-channel<\/b> channel-group<\/p>\n<\/td>\n
<\/a><\/p>\n
Selects a port channel interface to configure.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a02<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# port-channel standalone-disable<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Disables the standalone mode on the port-channel interface.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a03<\/p>\n<\/td>\n
<\/a><\/p>\n
Router(config-if)# end<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Exits configuration mode.<\/p>\n<\/td>\n<\/tr>\n
<\/a><\/p>\n
Step\u00a04<\/p>\n<\/td>\n
<\/a><\/p>\n
Router# show etherchannel<\/b> channel-group<\/em> port-channel<\/b><\/p>\n
<\/a><\/p>\n
Router# show etherchannel<\/b> channel-group<\/em> detail<\/b><\/p>\n<\/td>\n
<\/a><\/p>\n
Verifies the configuration.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/a><\/p>\n
This example shows how to disable the standalone EtherChannel member port state on port channel 42:<\/p>\n
<\/a><\/p>\n
\n
Router(config)# interface port-channel<\/b> channel-group \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router(config-if)# port-channel standalone-disable<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
<\/div>\n
<\/a><\/p>\n
This example shows how to verify the configuration:<\/p>\n
<\/a><\/p>\n
\n
Router# show etherchannel 42 port-channel | include Standalone<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Standalone Disable  = enabled \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Router# show etherchannel 42 detail | include Standalone<\/b> \n<\/pre>\n<\/div>\n
<\/a><\/p>\n
\n
Standalone Disable  = enabled<\/pre>\n<\/div>\n
http:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/catalyst6500\/ios\/12-2SX\/configuration\/guide\/book\/channel.html#wp1061808<\/p>\n","protected":false},"excerpt":{"rendered":"
EtherChannel Feature Overview An EtherChannel bundles individual Ethernet links into a single logical link that provides the aggregate bandwidth of up to eight physical links. Cisco\u00a0IOS\u00a0Release\u00a012.2SX supports a maximum of 128\u00a0EtherChannels. You can form an EtherChannel with up to eight… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-607","post","type-post","status-publish","format-standard","hentry","category-david-papkin"],"_links":{"self":[{"href":"https:\/\/davidpapkin.com\/index.php?rest_route=\/wp\/v2\/posts\/607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/davidpapkin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/davidpapkin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/davidpapkin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/davidpapkin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=607"}],"version-history":[{"count":0,"href":"https:\/\/davidpapkin.com\/index.php?rest_route=\/wp\/v2\/posts\/607\/revisions"}],"wp:attachment":[{"href":"https:\/\/davidpapkin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/davidpapkin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/davidpapkin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}