W takim razie jak to zasymulować? W labie mam region MST skladajacy sie z 2 switchy + 1 switch z RPVST. Na switchu rpvst ustawiłem priorytet 0 dla wszystkich vlanów przez spanning-tree vlan 1-4094 prio 0 a na switchach mst wszystkie vlany są w instance 0 i efekt jest taki:
Region MST:
Kod: Zaznacz cały
SW1#sh spanning-tree mst 0
##### MST0 vlans mapped: 1-4094
Bridge address aabb.cc00.0b00 priority 32768 (32768 sysid 0)
Root address aabb.cc00.0d00 priority 1 (0 sysid 1)
port Et4/0 path cost 2000000
Regional Root this switch
Operational hello time 2 , forward delay 15, max age 20, txholdcount 6
Configured hello time 2 , forward delay 15, max age 20, max hops 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Et0/0 Desg FWD 2000000 128.1 Shr
Et0/1 Desg FWD 2000000 128.2 Shr
Et1/0 Desg FWD 2000000 128.5 Shr
Et1/1 Desg FWD 2000000 128.6 Shr
Et1/3 Desg FWD 2000000 128.8 Shr
Et2/0 Desg FWD 2000000 128.9 Shr
Et2/1 Desg FWD 2000000 128.10 Shr
Et3/0 Desg FWD 2000000 128.13 P2p
Et3/1 Desg FWD 2000000 128.14 P2p
Et4/0 Root BKN*2000000 128.17 P2p Bound(PVST) *PVST_Inc
Et4/1 Altn BLK 2000000 128.18 P2p Bound(PVST)
Et5/2 Desg FWD 2000000 128.23 Shr
Kod: Zaznacz cały
SW2#sh spanning-tree mst 0
##### MST0 vlans mapped: 1-4094
Bridge address aabb.cc00.0c00 priority 32768 (32768 sysid 0)
Root address aabb.cc00.0d00 priority 1 (0 sysid 1)
port Et3/0 path cost 2000000
Regional Root address aabb.cc00.0b00 priority 32768 (32768 sysid 0)
internal cost 2000000 rem hops 19
Operational hello time 2 , forward delay 15, max age 20, txholdcount 6
Configured hello time 2 , forward delay 15, max age 20, max hops 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Et0/0 Desg FWD 2000000 128.1 Shr
Et0/1 Desg FWD 2000000 128.2 Shr
Et3/0 Root FWD 2000000 128.13 P2p
Et3/1 Altn BLK 2000000 128.14 P2p
Et5/0 Altn BLK 2000000 128.21 P2p Bound(PVST)
Et5/1 Altn BLK 2000000 128.22 P2p Bound(PVST)
RPVST:
Kod: Zaznacz cały
SW3#sh spanning-tree vlan 1
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 1
Address aabb.cc00.0d00
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 1 (priority 0 sys-id-ext 1)
Address aabb.cc00.0d00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Et0/0 Desg FWD 100 128.1 Shr
Et4/0 Desg FWD 100 128.17 P2p
Et4/1 Desg FWD 100 128.18 P2p
Et5/0 Desg FWD 100 128.21 P2p
Et5/1 Desg FWD 100 128.22 P2p
Jezeli dobrze rozumiem aby MST widzialo switch w RPVST jako roota, musze ustawic na nim prio na 0 dla kazdego vlanu?
Co chcę osiągnąć: chcę zasymulować tę niezalecaną konfigurację z rootem poza regionem MST.