[c-nsp] Etherchannel & 7507/5500 combo

[info at beprojects.com]

I'm pretty sure that on the 5500, you can NOT have ports on different 
line cards.  I even seem to remember that they had to be contiguous and 
within a block of 4 (i.e. ports 1-2, or 5-8, or 9-10).

James Saker wrote:
> Seems like I'm missing something simple on my Etherchannel implementation
> between a 7507 and a Catalyst 5500. I've worked thru the Cisco LAN Switching
> section on Etherchannel and various cisco.com documents and configurations,
> but appear to be overlooking something.
> 
> My configuration is a 7507 with a 100BASETX and 100BASEFX port that connect
> to the 5500 (fa1/0/0 and fa4/1/0 respectively). The 5500 has a TX and FX
> blade, with the FX connection on 4/1 and the TX on 7/1.
> 
> The objective of the etherchannel config is to provide the 7507 with 200
> Mbps of aggregate capacity for VLAN trunking out via the 5500. MPLS is also
> expected to be carried across the 5500 to remote routers, originating from
> the 7507. FX and TX combination is for slot diversity on both the 7507 and
> the 5500.
> 
> I've set up the 7507 in what should be a textbook config, creating the port
> channel interface first and then bringing the physical interfaces into
> membership:
> 
> interface Port-channel1
>  no ip address
>  full-duplex
>  tag-switching ip
>  hold-queue 150 in
> !      
> interface FastEthernet1/1/0
>  no ip address
>  no ip redirects
>  no ip proxy-arp
>  full-duplex
>  # note: no tag-switching IP here as it's defined on port channel, correct?
>  fair-queue
>  channel-group 1
> !         
> interface FastEthernet4/1/0
>  no ip address
>  no ip redirects
>  no ip proxy-arp
>  full-duplex
>  fair-queue
>  channel-group 1
> !         
> 
> show int port-channel 1 looks normal:
> 
> router1#show interfaces port-channel 1
> Port-channel1 is up, line protocol is up 
>   Hardware is FEChannel, address is 00d0.bc6a.a028 (bia 0000.0000.0000)
>   MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec, 
>      reliability 255/255, txload 1/255, rxload 1/255
>   Encapsulation ARPA, loopback not set
>   Keepalive set (10 sec)
>   ARP type: ARPA, ARP Timeout 04:00:00
>     No. of active members in this channel: 2 
>         Member 0 : FastEthernet1/1/0 , Full-duplex, 100Mb/s
>         Member 1 : FastEthernet4/1/0 , Full-duplex, 100Mb/s
> 
> So I'm guessing my problem is on the 5500, which claims no ports are
> channeling. Configuration is as follows:
> 
> #frame distribution method
> set port channel all distribution mac both
> #mls    
> set mls disable ip
> set mls nde disable
> !       
> #port channel
> set port channel 7/1 1
> set port channel 4/2 19
> set port channel 4/1 37
> !       
> # default port status is enable
> !       
> !       
> #module 1 : 0-port Supervisor III
> !
> #module 4 : 12-port 100BaseFX MM Ethernet
> set vlan 101  4/1
> set port duplex     4/1  full
> set trunk 4/1  on dot1q 1-1005
> set port channel 4/1 mode on
> set port channel 4/2 mode desirable silent
> !
> #module 7 : 24-port 10/100BaseTX Ethernet
> set vlan 2    7/3
> set vlan 3    7/2
> set vlan 4    7/4
> set vlan 101  7/1
> set vlan 1    7/24
> set port speed      7/1  100
> set port duplex     7/1  full
> set port broadcast  7/1   75.00%
> set trunk 7/1  on dot1q 1-1005
> set spantree portfast    7/1 enable
> set port channel 7/1 mode on
> !
> 
> 
> I'm guessing I'm overlooking something - having reviewed the config examples
> and experimented quite a bit. Any thoughts? 
> 
> Jamie
> 
> Sr. Network Engineer
> American Relay Company
> 
> 
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