Hello:

 

Okay, top posting.  J Is the default gateway reachable by both devices?  I 
didn't see an ARP entry that looked like a default gateway, given that only the 
remote-switch MAC Address.  If you have the same address for both that's either 
one of the switches or is not reachable then that may cause issues.

 

Mike

 

From: Juan C. Crespo R. [mailto:[EMAIL PROTECTED] 
Sent: Thursday, March 29, 2007 10:18 AM
To: Michael K. Smith - Adhost
Cc: [email protected]
Subject: Re: [c-nsp] Catalyst 2950G Trunking Issue

 

Ok

The 2950G Switch is L2, and I have the same default-gateway on both.

Thanks

Michael K. Smith - Adhost escribió: 

Hello Juan:
 
  

        -----Original Message-----
        From: [EMAIL PROTECTED] [mailto:cisco-nsp-
        [EMAIL PROTECTED] On Behalf Of Juan C. Crespo R.
        Sent: Thursday, March 29, 2007 6:51 AM
        To: [email protected]
        Subject: Re: [c-nsp] Catalyst 2950G Trunking Issue
         
        Reposting....
         
        SWITCH-A#show interfaces gigabitEthernet 0/1 trunk
         
        Port        Mode         Encapsulation  Status        Native vlan
        Gi0/1       on           802.1q         trunking      1
         
        Port      Vlans allowed on trunk
        Gi0/1       1,10-25,354,456,845
         
        Port        Vlans allowed and active in management domain
        Gi0/1       1
         
        Port        Vlans in spanning tree forwarding state and not pruned
        Gi0/1       1
         
         
        SWITCH-A#show interfaces vlan 1
        Vlan1 is up, line protocol is up
          Hardware is CPU Interface, address is 03b0.24b1.5180 (bia
        03b0.24b1.5180)
          Internet address is 10.0.0.1/24
          MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
             reliability 255/255, txload 1/255, rxload 1/255
          Encapsulation ARPA, loopback not set
          ARP type: ARPA, ARP Timeout 04:00:00
          Last input never, output never, output hang never
          Last clearing of "show interface" counters never
          Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
            

0
  

          Queueing strategy: fifo
          Output queue: 0/40 (size/max)
          5 minute input rate 0 bits/sec, 0 packets/sec
          5 minute output rate 0 bits/sec, 0 packets/sec
             25 packets input, 3264 bytes, 0 no buffer
             Received 0 broadcasts (0 IP multicast)
             0 runts, 0 giants, 0 throttles
             0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
             164 packets output, 0 bytes, 0 underruns
             0 output errors, 4 interface resets
             0 output buffer failures, 0 output buffers swapped out
         
        SWITCH-A# show arp
        Protocol  Address          Age (min)  Hardware Addr   Type   Interface
        Internet  10.0.0.1                -   03b0.24b1.5180  ARPA   Vlan1
         
         
        SWITCH-B#show interfaces gigabitEthernet 0/1 trunk
         
        Port        Mode         Encapsulation  Status        Native vlan
        Gi0/1       on           802.1q         trunking      1
         
        Port      Vlans allowed on trunk
        Gi0/1       1,10-25,354,456,845
         
        Port        Vlans allowed and active in management domain
        Gi0/1       1
         
        Port        Vlans in spanning tree forwarding state and not pruned
        Gi0/1       1
         
         
        SWITCH-B#show interfaces vlan 1
        Vlan1 is up, line protocol is up
          Hardware is CPU Interface, address is 03b2.24b1.5180 (bia
        03b2.24b1.5180)
          Internet address is 10.0.0.2/24
          MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
             reliability 255/255, txload 1/255, rxload 1/255
          Encapsulation ARPA, loopback not set
          ARP type: ARPA, ARP Timeout 04:00:00
          Last input never, output never, output hang never
          Last clearing of "show interface" counters never
          Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
            

0
  

          Queueing strategy: fifo
          Output queue: 0/40 (size/max)
          5 minute input rate 0 bits/sec, 0 packets/sec
          5 minute output rate 0 bits/sec, 0 packets/sec
             210 packets input, 15072 bytes, 0 no buffer
             Received 0 broadcasts (0 IP multicast)
             0 runts, 0 giants, 0 throttles
             0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
             34 packets output, 0 bytes, 0 underruns
             0 output errors, 4 interface resets
             0 output buffer failures, 0 output buffers swapped out
         
        SWITCH-B# show arp
        Protocol  Address          Age (min)  Hardware Addr   Type   Interface
        Internet  10.0.0.2                -   03b2.24b1.5180  ARPA   Vlan1
         
         
         
        SWITCH-B#ping 10.0.0.1
         
        Type escape sequence to abort.
        Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
        .....
        Success rate is 0 percent (0/5)
         
         
         
        SWITCH-A#ping 10.0.0.2
         
        Type escape sequence to abort.
        Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
        .....
        Success rate is 0 percent (0/5)
        SWITCH-A#
         
            

 
 
Depending on whether or not your switch is running in L2 or L3 mode, do
you have either a default route, default-gateway or both?  For testing,
you may want to set the appropriate variable to the other device.
 
Mike
 
 
 
  
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