[c-nsp] Catalyst 2950G Trunking Issue

[Juan C. Crespo R.]

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#

Thanks..