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no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Cat-3 ! ! no aaa new-model system mtu routing 1500 ip subnet-zero no ip domain-lookup ! ! ! ! ! ! no file verify auto ! spanning-tree mode mst spanning-tree extend system-id ! vlan internal allocation policy ascending ! ! interface FastEthernet0/1 ! interface FastEthernet0/2 ! interface FastEthernet0/3 ! interface FastEthernet0/4 ! interface FastEthernet0/5 switchport access vlan 567 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky switchport port-security mac-address sticky 0000.0c07.ac0a switchport port-security mac-address sticky 0011.209d.6540 ! interface FastEthernet0/6 ! interface FastEthernet0/7 ! interface FastEthernet0/8 ! interface FastEthernet0/9 ! interface FastEthernet0/10 ! interface FastEthernet0/11 ! interface FastEthernet0/12 ! interface FastEthernet0/13 ! interface FastEthernet0/14 ! interface FastEthernet0/15 ! interface FastEthernet0/16 ! interface FastEthernet0/17 ! interface FastEthernet0/18 ! interface FastEthernet0/19 switchport trunk encapsulation dot1q switchport mode trunk ! interface FastEthernet0/20 switchport trunk encapsulation dot1q switchport mode trunk switchport backup interface Fa0/19 switchport backup interface Fa0/19 mmu primary vlan 1 switchport backup interface Fa0/19 preemption mode forced ! interface FastEthernet0/21 ! interface FastEthernet0/22 ! interface FastEthernet0/23 shutdown ! interface FastEthernet0/24 shutdown ! interface FastEthernet0/25 ! interface FastEthernet0/26 ! interface FastEthernet0/27 ! interface FastEthernet0/28 ! interface FastEthernet0/29 ! interface FastEthernet0/30 ! interface FastEthernet0/31 ! interface FastEthernet0/32 ! interface FastEthernet0/33 ! interface FastEthernet0/34 ! interface FastEthernet0/35 ! interface FastEthernet0/36 ! interface FastEthernet0/37 ! interface FastEthernet0/38 ! interface FastEthernet0/39 ! interface FastEthernet0/40 ! interface FastEthernet0/41 ! interface FastEthernet0/42 ! interface FastEthernet0/43 ! interface FastEthernet0/44 ! interface FastEthernet0/45 ! interface FastEthernet0/46 ! interface FastEthernet0/47 ! interface FastEthernet0/48 ! interface GigabitEthernet0/1 ! interface GigabitEthernet0/2 ! interface GigabitEthernet0/3 ! interface GigabitEthernet0/4 ! interface Vlan1 no ip address shutdown ! interface Vlan567 ip address 172.16.136.13 255.255.255.192 ! ip default-gateway 172.16.136.5 ip classless ip http server ip http secure-server ! ! ! control-plane ! ! line con 0 line vty 0 4 login line vty 5 15 login !
Cat-3# sh cdp ne Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID Local Intrfce Holdtme Capability Platform Port ID r5 Fas 0/5 179 R S I 2610XM Fas 0/0 Cat-2 Fas 0/20 176 S I WS-C3550- Fas 0/20 Cat-2 Fas 0/19 176 S I WS-C3550- Fas 0/19 Cat-3#
Cat-3#sh int trun
Port Mode Encapsulation Status Native vlan Fa0/19 on 802.1q trunking 1 Fa0/20 on 802.1q trunking 1
Port Vlans allowed on trunk Fa0/19 1-4094 Fa0/20 1-4094
Port Vlans allowed and active in management domain Fa0/19 1,12,40,100,136,200,300,567 Fa0/20 1,12,40,100,136,200,300,567
Port Vlans in spanning tree forwarding state and not pruned Fa0/19 none Fa0/20 1,12,40,100,200,300,567 Cat-3#
JB
—–Original Message—– From: Bajo [mailto:bajoalex@gmail.com] Sent: Monday, December 31, 2007 12:57 PM To: Jeffrey Biggs Subject: Re: IPEXPERT LAB 26: STANDBY Interface on CAT3560
Jeff, will be hard to tell w/o seeing the config on each SW and also if they are even trunking/talking to each other ( so sh run, sh cdp nei and sh inter trunk on each may help)….
On 12/31/07, Jeffrey Biggs wrote: > I have setup the required “standby interface” on the 3560 but for some > reason, the 3560 is not seeing the 3550 (switch 2) as the root. But it is > learning all the vlans via VTP and is forwarding traffic, which really > baffles me. I am running MST on the switches with switch 2 as the root and > switch 1 as the VTP server: > > > > (switch 1)=====po12======(switch 2)———–Fa0/19 (fa0/20 in > standby)——(switch 3) > > > > All switches running MST and switch 1 sees switch 2 as root, but 3 don’t: > > > > > Cat-2>sh span > > > > MST0 > > Spanning tree enabled protocol mstp > > Root ID Priority 24576 > > Address 000e.d799.3f00 > > This bridge is the root > > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > > > > Bridge ID Priority 24576 (priority 24576 sys-id-ext 0) > > Address 000e.d799.3f00 > > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > > > > Interface Role Sts Cost Prio.Nbr Type > > —————- —- — ——— ——– > ——————————– > > Fa0/1 Desg FWD 200000 128.1 P2p > > Fa0/6 Desg FWD 200000 128.6 P2p > > Fa0/7 Desg FWD 2000000 128.7 P2p > > Fa0/8 Desg FWD 2000000 128.8 P2p > > Fa0/9 Desg FWD 200000 128.9 P2p > > Fa0/12 Desg FWD 2000000 128.12 P2p > > Fa0/13 Desg FWD 2000000 128.13 P2p > > Fa0/19 Desg FWD 200000 128.19 P2p > > Fa0/20 Desg FWD 200000 128.20 P2p > > > > Interface Role Sts Cost Prio.Nbr Type > > —————- —- — ——— ——– > ——————————– > > > > Po12 Desg FWD 20000 128.65 P2p > > > > Cat-2> > > > > > > Cat-3#sh spanning-tree > > > > MST0 > > Spanning tree enabled protocol mstp > > Root ID Priority 32768 > > Address 0011.bb1c.f000 > > This bridge is the root > > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > > > > Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) > > Address 0011.bb1c.f000 > > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > > > > Interface Role Sts Cost Prio.Nbr Type > > —————- —- — ——— ——– > ——————————– > > Fa0/5 Desg FWD 200000 128.7 P2p > > > > Cat-3# > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html >
— Kind Regards,
Bajo