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Interface vlan not showing traffic

rvg2k
Level 1
Level 1

Hi,

we have a cissco 4506-e switch with ios verion 03.02.05.SG . We ae currently facing a strange problem . Vlan interfaces configured in he switch are not showing input and output traffic, whereas the traffic is seen on the Gig interfaces mapped to the respective vlans . We also tried configuring the load-interval 30 , but there is no change . Interace 3/5 is mapped to vlan 5 . For this issue we have also done the IOS upgrade from 3.1.1SG to 3.2.5SG recently still the issue is same .

Vlan5 is up, line protocol is up

  Hardware is Ethernet SVI, address is 3031.021a.43bg (bia 3031.021a.43bg)

  Description: **data**

  Internet address is 10.2.3.3/24

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive not supported

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:02, 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

  L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes

  L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes

  IPv6 L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes

  IPv6 L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes

     16643 packets input, 3068419 bytes, 0 no buffer

     Received 16999 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     41879 packets output, 1994075 bytes, 0 underruns

     0 output errors, 0 interface resets

     0 output buffer failures, 0 output buffers swapped out

GigabitEthernet3/5 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet Port, address is ddef.233a.4b30 (bia ddef.233a.4b30)

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 3/255, rxload 10/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX

  input flow-control is off, output flow-control is off

  Auto-MDIX on (operational: on)

  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: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 41871000 bits/sec, 7991 packets/sec

  5 minute output rate 13950000 bits/sec, 6800 packets/sec

     703828585 packets input, 842898712214 bytes, 0 no buffer

     Received 11168 broadcasts (34 multicasts)

     0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 input packets with dribble condition detected

     427012246 packets output, 77399495556 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

interface Vlan5

description **data**

ip address 10.2.3.3 255.255.0.0

interface GigabitEthernet3/5

switchport access vlan 5

ip flow monitor Netflow-Mon input

spanning-tree portfast

Please suggest

2 Replies 2

Hello

Can you post the running config of the switch,

sh run

sh vlan brief

res

Paul

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Please rate and mark as an accepted solution if you have found any of the information provided useful.
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Kind Regards
Paul

mgalazka
Level 1
Level 1

Greetings,

By default the 4500 Sup6/7 do not track Layer 3 (SVI) interface counters.  You can enable them by adding "counter" to the SVI config.

For your above example:

config t

int vlan5

counter

end

Reference:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/40sg/configuration/guide/l3_int.html#wp1055608

Good luck, and please share if this resolves your issue.

Matt

Review Cisco Networking for a $25 gift card