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Cisco CRS-1 Carrier Routing System Multishelf System Upgrade and Conversion Guide
OL-12571-01
Chapter2 Converting to an Integrated Switch System
How to Convert from the Cisco Catalyst 65xx Switch to the Integrated Switch System for a Four-FCC Multishelf System
Connecting the 22-port SCGEs into a Full Mesh Configuration (Four-FCC Multishelf System)
To connect the 22-port SCGEs in a full mesh configuration, perform the following steps:
Step 1 Connect all of the 22-port SCGE cards to every other 22-port SCGE cards in the system in a mesh
connection topology. Every 22-port SCGE card has seven connections to other 22-port SCGE cards.
Step 2 Verify that all new connections are bidirectional and connected to the right neighbor s by using the show
controllers switch inter-rack udld command, with the all and location keywords, in administration
EXEC mode, as shown in the following syntax:
show controllers switch inter-rack udld {all location node-id}
Replace the node-id argument with the location of all of the 22-port SCGE cards.
Step 3 Verify that all of the connected ports to the 22-port SCGE cards are displayed as either in forwarding
(FWD) state or blocked (BLK) state for all of the 22-port SCGE cards in the system by using the show
controller switch inter-rack stp command, with the location keyword, in administration EXEC mode.
The location is used for all of the 22-port SCGE cards in the system.
The following example shows location f0/sc0/cpu0:
RP/0/RP0/CPU0:router(admin)# show controllers switch inter-rack stp location f0/sc0/cpu0
##### MST 0 vlans mapped: 2-4094
Bridge address 5246.48f0.20ff priority 32768 (32768 sysid 0)
Root this switch for the CIST
Operational hello time 1, forward delay 6, max age 8, txholdcount 6
Configured hello time 1, forward delay 6, max age 8, max hops 4
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- ---------------------------
##### MST 1 vlans mapped: 1
Bridge address 5246.48f0.20ff priority 32769 (32768 sysid 1)
Root this switch for MST1
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- ---------------------------
GE_13 Desg FWD 20000 128. 14 P2p
GE_14 Desg FWD 20000 128. 15 P2p
GE_15 Desg FWD 20000 128. 16 P2p
GE_17 Desg FWD 20000 128. 18 P2p
GE_22 Desg FWD 20000 128. 23 P2p