Hello Arjun,
you can check that the interface queues are not full with
sh int type x/y
Example:
RT-LONDON-E-1>sh int ser0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Description: Link 2Mb ALBACOM --> RT-RM-TLD066-RG-BB-E-3 TD:W0L32037
Internet address is 10.110.0.222/30
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 8/255, rxload 9/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:04, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/191/0 (size/max/drops/flushes); Total output drops: 8181
Queueing strategy: fifo
but to measure latency you need to send traffic with timestamps inside.
notice that you can roughly exstimate latency using RTT on an extended ping so you can try to perform an extended ping of an ip address on the same subnet.
so you can say latency = RTT / 2
This is a good method for serial links where only one device is at the other end of the link.
Hope to help
Giuseppe
