03-11-2011 05:00 AM - edited 03-04-2019 11:43 AM
Hi,
I have cisco routers on a WAN link (SDH). When i run the command "show interface POS X/X/X", what is the rate which appears ?
Example : show interfaces pos 2/0/0
POS2/0/0 is up, line protocol is up
Hardware is cyBus Packet over Sonet
Description: PRI-T1 net to zippy (4K) to Pac-Bell
Internet address is 1.1.1.1/27
MTU 4470 bytes, BW 1000 Kbit, DLY 40000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (3 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:23:09
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
1046 packets input, 54437 bytes, 0 no buffer
Received 485 broadcasts, 0 runts, 0 giants, 0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
4013 packets output, 1357412 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
03-12-2011 07:22 AM
Hi
Looks to me it include both l2 and l3 as it counts for packets in and out of the interface,
I am not sure about your requirement but if your platform support, you can apply a MQC/policy-map on in and out with a class of l3 and l2, you should able to see the rate or packet counts
HTH
Sent from Cisco Technical Support iPhone App
03-14-2011 02:03 AM
Hi,
Thanks for your reply.
I have no specially requirements. I made bandwith test with a 10Gb generators (on the lan side) with different packet size to test the capacity of the equipments
So with 64 octets packets (ethernet) and a 2,5 Gb SDH link, the generator said that the maximum rate is 800 Mb/s before dropping. (LAN Ethernet side)
And on my router, on the interface POS, i had a 1,2 Gb/s rate.
There is the protocol overhead mecanism (IPSec, PPP/HDLC, SDH...). For this kind of packet, there are more overhead than payload.
So i just want to understand the value of the rate of the pos interface and which data are take in consideration...
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