I am testing a Catalyst 4900M for ipv4/ipv6 routing between SVI (int vlan xxx)
and found that the interface counters are not reflecting the real amount of traffic.
I believe that only the traffic to the processor is counted (for example ospf traffic),
but i am missing counters for the hardware-forwarded packets/bytes for those vlans.
Any hints? Is there a special snmp-variable/table for it
(the "normal" interface counter thru snmp
show the same values as the show interface vlan xxx command).
currently tested image is cat4500e-entservicesk9-mz.122-53.SG1.bin,
example for show interface is
Vlan501 is up, line protocol is up
Hardware is Ethernet SVI, address is 0022.56ba.897f (bia 0022.56ba.897f)
Internet address is xxx.XXX.xxx.XXX/28
MTU 2018 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 00:00:00, 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
0 packets input, 0 bytes, 0 no buffer
Received 1602141 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
1345389 packets output, 122115475 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Sure, there are flowing more than 1 MBit/s in and out.
Any suggestions ?
Thank you ,