Маршрутизаторы Cisco 4331 с IOS на борту поддерживают следующий набор протоколов cемейства STP:
Enterasys B3:
B3(su)->set spantree version ?
mstp IEEE802.1s version 3
rstp IEEE802.1w version 2
stpcompatible IEEE802.1d version 0
Enterasys B3:
B3(su)->set spantree version ?
mstp IEEE802.1s version 3
rstp IEEE802.1w version 2
stpcompatible IEEE802.1d version 0
Cisco 4331 (c модулем коммутации NIM-ES2-4):
cisco4331-01(config)#spanning-tree mode ?
mst Multiple spanning tree mode
pvst Per-Vlan spanning tree mode
rapid-pvst Per-Vlan rapid spanning tree mode
Во избежании проблем в связке рекомендую дружить их по принципу общего знаменателя, т.е использовать совместимые связки на основе открытых стандартов MSTP (IEEE 802.1s) и RSTP (IEEE 802.1w):
Cisco:
cisco4331-01#sh run | i spanning-tree mode
spanning-tree mode mst
cisco4331-01#sh spanning-tree
G0:MST0
Spanning tree enabled protocol mstp
Root ID Priority 4096
Address 0011.88f2.95c0
Cost 20000
Port 11 (GigabitEthernet0/1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address 009a.d286.a041
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1/0 Altn BLK 20000 128.10 P2p Bound(RSTP)
Gi0/1/1 Root FWD 20000 128.11 P2p Bound(RSTP)
Enterasys:
B3(su)->show config spantree
This command shows non-default configurations only.
Use 'show config all' to show both default and non-default configurations.
!
#***** NON-DEFAULT CONFIGURATION *****
!
!
# Firmware Revision: 06.61.16.0002
!
!
#spantree
set spantree priority 4096 0
!
B3(su)->show spantree version
Force Version is mstp
B3(su)->show spantree stats
Spanning tree status - enabled
Spanning tree instance - 0
Designated Root MacAddr - 00:11:88:F2:95:C0
Designated Root Port - 0
Designated Root Priority - 4096
Designated Root Cost - 0
Root Max Age - 20
Root Hello Time - 2
Root Forward Delay - 15
Bridge ID MAC Address - 00:11:88:F2:95:C0
Bridge ID Priority - 4096
Bridge Max Age - 20
Bridge Hello Time - 2
Bridge Forward Delay - 15
Topology Change Count - 20
Time Since Top Change - 0 days 0:15:36
Max Hops - 20
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