First you need to reform the channel groups to span cards. By default they are four adjacent ports on the same card. here is part the doc I wrote on how we did it between three 65xxs, two gig ports between each.
If you want to check a channel the intuitive command doesnt tell you much.
Here you can see that there are two channels. Each has two ports and both ports in each are active. Then it identifies the switch and port at the other end of each link in the channels. If you disconnected 6/15 in CAT1 it would show disconnected and you would not see the remote device information for that link. However, channel 872 would still be up using one link, 4/15 and you would see that remote device info.
To set up a channel two steps are necessary. Define the channel group you want. Then set the ports to a channel mode that is compatible with the mode set on the ports at the other end. We set ours on to bypass any negotiation delay. By default the switch has channel groups already defined in groups of four ports across each card. You can see the groups like this.
172 4/13-14 < This group is 2 ports because 2 were removed for other groups
330 6/13-14 < Same here
335 4/16,6/16 < This group was manually created to span 2 cards
437 4/15,6/15 < Same here
These are global statements that define the channel groups. Most of these are defaults. The Admin group number is added automatically when creating a new group.
set port channel 6/9-11 165
set port channel 7/1-4 167
set port channel 4/13-14 172 < This one changed automatically
set port channel 5/1-4 173
set port channel 6/13-14 330 < and this one
set port channel 4/16,6/16 335 < When the new groups were defined here
set port channel 9/1-4 336
set port channel 5/15 436
set port channel 4/15,6/15 437 < and here
These commands set the ports to skip negotiation and go directly into channel mode. It brings the link up faster and is required if the other side is set to on. These statements do not bind 4/15 and 16 in any way. Its just how the system displays sequential ports with the same settings.
#module 4 : 16-port 1000BaseSX Ethernet
set port channel 4/15-16 mode on
#module 6 : 16-port 1000BaseSX Ethernet
set port channel 6/15-16 mode on
A channel is not necessarily a trunk, you could channel an individual VLAN. To see what kind of channel it is look at the ports that make up the channel/s. Below you see that the ports in these channels are set as trunks.
I notice right from the beginning of the conversation that the guy needed to form EtherChannel between port 1/1 and 2/1 on the same switch to the other switch on ports 1/1 and 2/1. I thought that to carry out EtherChannel, you need to have consecutive ports for example 1/1-2 or 2/1-2. Have you any experience in configuring EtherChannel on non-consecutive ports? If it is working for you at the moment, can you tell me what version of IOS, CatIOS that you're using? I'm currently running two Cat4006 with CatIOS ver 7.4.3. Thanks in advance for your answer. Please email me on email@example.com.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.