verifying portchannel configuration

Rahmat Ullah · ‎02-01-2015

I recently joined a company as a network engineer, most of the networking task has been implemented by previous employee. I'm looking into configuration of the network. lots of portchannel is being already implemented.

I'm looking for a command to see the whole properties of a specific portchannel for instance vlan membership, speed, mode etc...

Cisco Freak · ‎02-01-2015

This should help you out.

Switch#show etherchannel summary

Flags: D - down P - bundled in port-channel

I - stand-alone s - suspended

H - Hot-standby (LACP only)

R - Layer3 S - Layer2

U - in use f - failed to allocate aggregator

M - not in use, minimum links not met

u - unsuitable for bundling

w - waiting to be aggregated

d - default port

Number of channel-groups in use: 1

Number of aggregators: 1

Group Port-channel Protocol Ports

------+-------------+-----------+-----------------------------------------------

1 Po1(SD) LACP Fa0/8(I) Fa0/9(I)

Switch#sh etherchannel port-channel

Channel-group listing:

----------------------

Group: 1

----------

Port-channels in the group:

---------------------------

Port-channel: Po1 (Primary Aggregator)

------------

Age of the Port-channel = 0d:00h:00m:34s

Logical slot/port = 1/0 Number of ports = 0

HotStandBy port = null

Port state = Port-channel Ag-Not-Inuse

Protocol = LACP

Port security = Disabled

Switch#

CF

Jon Marshall · ‎02-01-2015

If you want to see vlan membership then -

"sh int trunk po<x>"

although to be honest it's just as easy to look at config ie. if the "switchport trunk allowed vlan ..." command has been used that will tell which vlans are allowed across the link.

If there is no such command then all vlans are allowed by default.

Jon

Andre Neethling · ‎02-01-2015

Hi Rahmat

You can try the following commands

show run interface portchannel <x> where x is the channell group ID

or

sh interface portchannel <x> where x is the channell group ID