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White Paper Issue: October 2006 Integration of BX600 SB9 Switches in Cisco Networks Page 20 / 47
Hello Time 1 sec Max Age 11 sec Forward Delay 8 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po2 Altn BLK 3 128.640 P2p
Po3 Root FWD 3 128.616 P2p
VLAN0020
Spanning tree enabled protocol rstp
Root ID Priority 20
Address 0017.9470.3200
Cost 3
Port 616 (Port-channel3)
Hello Time 1 sec Max Age 11 sec Forward Delay 8 sec
Bridge ID Priority 4116 (priority 4096 sys-id-ext 20)
Address 000f.247b.d080
Hello Time 1 sec Max Age 11 sec Forward Delay 8 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po2 Altn BLK 3 128.640 P2p
Po3 Root FWD 3 128.616 P2p
2.4.4 Configuration without VLAN Trunks
You set up the scenario shown in Figure 8 by performing the following steps:
• Step 1: Configure the switches
• Step 2: Verify the configuration
SB9
RSTP enabled
Cisco A
priority 0 for all vlans
Po1
Po1
Po2
Po2
Po3 Po3
No Trunks
Cisco B
priority 4096 for all vlans
Alternate
discarding
Root port
forwarding
Designated port
forwarding
Designated port
forwarding
Gi 0/1
Gi 0/1 Gi 0/2
Gi 0/1
0/11
0/12
0/13
0/14
Gi 0/23
Gi 0/24
Gi 0/23
Gi 0/24
Figure 9 : Configuration example RSTP without VLAN trunks
Step 1: Configure the switches
! SB9 configuration
!
! Enable RSTP for the whole switch
spanning-tree
spanning-tree mode rstp
! Definine the port-channels
port-channel Po1
interface 1/1
exit
interface 0/11
channel-group 1/1
exit
interface 0/12