At a college I'm trying to setup a Cisco 2960 to be used on a VLAN 248 tagged on the uplink port that uses Spanning Tree/
Here is the following from the Cisco:
show interfaces trunk
Port Mode Encapsulation Status Native vlan
Gi0/1 on 802.1q trunking 1
Port Vlans allowed on trunk
Port Vlans allowed and active in management domain
Port Vlans in spanning tree forwarding state and not pruned
All the FastEthernet ports are the same:
switchport access vlan 248
switchport mode access
This is the uplink port:
switchport trunk allowed vlan 248
switchport mode trunk
On the Alcatel OS6850-48L the following is setup:
bridge 1x1 248 priority 3287
Vlan 248 802.1q 5/8 "cisco"
I cannot make a change on the Alcatel, I can only adminsiter the Cisco. I was able to get things working fine (as a test) using a Netgear or HP switch instead of the Cisco. However we have a Cisco switches and would not like to have to buy HPs.
Is there a compatible spanning tree protocol to use on the Cisco with the way things are configured on the Alcatel.
I need to stick to standard RSTP (802.1w) ieee standards and not something Cisco proprietary.
I spoke with Cisco today and they said to use: spanning-tree mode rapid-pvst
I'm trying to test if the port is sending packets out properly. They need to be tagged 248. And the switch needs to communicate with the Alcatel's spanning tree. I added the follow to mirror the port, and it does mirror. However it doesn't show everything. Such as STP sent or received. Nor does it show items tagged.
I tested using a Netgear with mirroring and see lots of traffic from the Alcatel and even some STP from the Cisco (hooked up to the Netgear). So I am wondering why the mirror on the Cisco does not mirror all the traffic.I'm including my configuration file below (less IPs and passwords):
! version 12.2 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname nsiswitch2-534ne ! boot-start-marker boot-end-marker ! enable secret 5 ! no aaa new-model system mtu routing 1500 ip subnet-zero ! ! ! crypto pki trustpoint TP-self-signed-4271168512 enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-4271168512 revocation-check none rsakeypair TP-self-signed-4271168512 ! ! crypto pki certificate chain TP-self-signed-4271168512 certificate self-signed 01 REMOVED ALL THE STUFF HERE.... quit ! ! ! ! ! ! spanning-tree mode rapid-pvst spanning-tree extend system-id ! vlan internal allocation policy ascending ! ! ! interface FastEthernet0/1 switchport access vlan 248 switchport mode accessALL THE FastEthernets ARE THE SAME...interface FastEthernet0/24 switchport access vlan 248 switchport mode access ! interface GigabitEthernet0/1 switchport trunk allowed vlan 248 switchport mode trunk switchport nonegotiate ! interface GigabitEthernet0/2 ! interface Vlan1 no ip address no ip route-cache ! interface Vlan248 ip address a.b.c.d 255.255.255.0 no ip route-cache ! ip default-gateway a.b.c.d ip http server ip http secure-server ! control-plane ! ! line con 0 line vty 0 4 password login line vty 5 15 password login ! ! monitor session 1 source interface Gi0/1 monitor session 1 destination interface Gi0/2 end
BTW, here is some code that the Alcatel sends out. I only got this when I hooked up a PC to the wall jack.
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