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Cisco Switches and HP Interoperability with Spanning-Tree (RSTP)

Hello All.

 

I read a lot of information from this forum about Spaning-Tree interoperability between HP Switches and Cisco Switches.

Rather than having questions I would like to post that I manage to configure successfully HP and Cisco using RSTP (802.1w).

 

 

SWPADRAO]display stp root

MSTID  Root Bridge ID        ExtPathCost IntPathCost Root Port

  0    32768.cc3e-5f3a-2939  0           0

 

[SWPADRAO]display stp brief

MSTID      Port                         Role  STP State     Protection

  0        GigabitEthernet1/0/47        DESI  FORWARDING    NONE

  0        GigabitEthernet1/0/48        DESI  FORWARDING    NONE

 

[SWPADRAO]display stp instance 0

-------[CIST Global Info][Mode RSTP]-------

CIST Bridge         :32768.cc3e-5f3a-2939

Bridge Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20

CIST Root/ERPC      :32768.cc3e-5f3a-2939 / 0

CIST RegRoot/IRPC   :32768.cc3e-5f3a-2939 / 0

CIST RootPortId     :0.0

BPDU-Protection     :enabled

Bridge Config-

Digest-Snooping     :disabled

TC or TCN received  :17

Time since last TC  :0 days 0h:1m:52s

 

SWNHAM17#show spanning-tree

 

VLAN0001

 Spanning tree enabled protocol rstp

 Root ID    Priority    32768

            Address     cc3e.5f3a.2939

            Cost        4

            Port        26 (GigabitEthernet0/2)

            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 

 Bridge ID  Priority    61441  (priority 61440 sys-id-ext 1)

            Address     001b.54db.7200

            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

            Aging Time 300

 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Gi0/1            Altn BLK 4         128.25   P2p

Gi0/2            Root FWD 4         128.26   P2p

 

SWNHAM18#show spanning-tree

 

VLAN0001

 Spanning tree enabled protocol rstp

 Root ID    Priority    32768

            Address     cc3e.5f3a.2939

            Cost        4

            Port        26 (GigabitEthernet0/2)

            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 

 Bridge ID  Priority    61441  (priority 61440 sys-id-ext 1)

            Address     001b.0cbc.4300

            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

            Aging Time 300

 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Gi0/1            Desg FWD 4         128.25   P2p

Gi0/2            Root FWD 4         128.26   P2p

 
 

 

 

 

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