07-07-2014 03:17 PM - edited 03-07-2019 07:57 PM
As I was mapping out the spanning tree architecture I came across a link (Tengig 1/1) which does not exist as my ten gig module is in slot 9 and the only thing that is in slot 1 is the Cisco ACE load balancer.
swx1.lax1#sh spanning-tree vlan 12
VLAN0012
Spanning tree enabled protocol rstp
Root ID Priority 8204
Address 0022.9189.d400
Cost 3
Port 1670 (Port-channel11)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32780 (priority 32768 sys-id-ext 12)
Address 0022.be6f.6000
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 480
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/1 Desg FWD 2 128.1 P2p Edge
Gi3/14 Desg FWD 4 128.270 P2p
Po11 Root FWD 3 128.1670 P2p
Po21 Altn BLK 3 128.1672 P2p
How did the tengig 1/1 come about ? Could it be the backplane connection for the ACE module ? Please advise.
07-07-2014 03:48 PM
It's the backplane, I suspect.
07-08-2014 04:51 PM
Verified with Cisco - it is the 10G trunk which the ACE module uses to communicate with the backplane.
But I thought each line card only has dual channel and can only access to the 32G bus in the backplane (so about 8G per channel x 4 =32 G) ??
Anyone has the article or white paper about the 6509 architecture ?
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