Spanning Tree between ES-Summit48si and Catalyst 2950

[forum569]

Hello,

We have 2 ES-Summit 48Si Full L3, we need to setup a ring with a Catalyst 2950, i just configured RSTP on the switches and it is workin for only one vlan (Ex. Vlan 10). I can not setup to work with other vlan (Ex. vlan 20) neither 802.1d or 802.1w.

On catalyst 2950 i can see both vlans but for second vlan i see both ports in forwarding state, of course this cause a loop and degrade the perfomance.

ES-Summit48si:
# Config information for VLAN ROJA.
configure vlan "ROJA" tag 10 # VLAN-ID=0xa Global Tag 3
configure stpd A1 add vlan "ROJA"
configure vlan "ROJA" ipaddress 10.200.1.2 255.255.255.240
configure vlan "ROJA" add port 1 tagged
configure vlan "ROJA" add port 2 tagged
#
# Config information for VLAN AZUL.
configure vlan "AZUL" tag 20 # VLAN-ID=0x14 Global Tag 4
configure stpd A1 add vlan "AZUL"
configure vlan "AZUL" add port 1 tagged
configure vlan "AZUL" add port 2 tagged

enable stpd ALFA1 rapid-root-failover
configure stpd A1 tag 10
configure stpd A1 mode dot1w
configure stpd A1 port mode pvst-plus 1
configure stpd A1 port link-type point-to-point 1
configure stpd A1 port mode pvst-plus 2
configure stpd A1 port link-type point-to-point 2
enable stpd A1

NODO1:2 # show stpd A1
Stpd: A1 Stp: ENABLED Number of Ports: 2
Rapid Root Failover: Enabled
Operational Mode: 802.1W
802.1Q Tag: 10
Ports: 1,2
Active Vlans: ROJA AZUL
Bridge Priority: 32768
BridgeID: 80:00:00:04:96:22:cf:60
Designated root: 80:00:00:04:96:22:cf:60
RootPathCost: 0 Root Port: ----
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 1
Time Since Last Topology Change: 188s

NODO1:3 # show stpd A1 ports
Port Mode State Cost Flags Priority Port ID Designated Bridge
1 PVST+ FORWARDING 19 e-Dpp-w- 16 16385 80:00:00:04:96:22:cf:60
2 PVST+ FORWARDING 19 e-Dpp-w- 16 16386 80:00:00:04:96:22:cf:60

Total Ports: 2

------------------------- Flags: ----------------------------
1: e=Enable, d=Disable
2: L = Loopback port
3: (Port role) R=Root, D=Designated, A=Alternate, B=Backup
4: (Config type) b=broadcast, p=point-to-point, e=edge, a=auto
5: (Oper. type) b=broadcast, p=point-to-point, e=edge
6: p=proposing, a=agree
7: (partner mode) d = 802.1d, w = 802.1w
8: i = edgeport inconsistency



catalyst 2950: Version 12.1(22)EA6

spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
!
interface FastEthernet0/1
description !!! TRONCAL 1 !!!
switchport trunk allowed vlan 10,20
switchport mode trunk
switchport nonegotiate
!
interface FastEthernet0/2
description !!! TRONCAL 2 !!!
switchport trunk allowed vlan 10,20
switchport mode trunk
switchport nonegotiate

NODO3#show spanning-tree

VLAN0010
Spanning tree enabled protocol rstp
Root ID Priority 32768
Address 0004.9622.cf60
Cost 38
Port 1 (FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32778 (priority 32768 sys-id-ext 10)
Address 000c.85dc.0140
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300

Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p


VLAN0020
Spanning tree enabled protocol rstp
Root ID Priority 32788
Address 000c.85dc.0140
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32788 (priority 32768 sys-id-ext 20)
Address 000c.85dc.0140
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300

Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p

 

[ExtremeSE]

What version of Extremeware are you running?