speed between 1T on 3640 and 3620?

[junlonglu]

all serial interface with default config,

1T on 3620 :

sh ver

Serial0 is administratively down, line protocol is down

Hardware is HD64570

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

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

Encapsulation HDLC, loopback not set

Keepalive not set

Last input never, output never, output hang never

But:

1T on 3640 :

sh ver

Serial0 is administratively down, line protocol is down

Hardware is HD64570

MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,

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

Encapsulation HDLC, loopback not set

Keepalive not set

Last input never, output never, output hang never

3640 display BW with 2048 Kbit,while 3620 is 1544 Kbit!can anyone tell me why?

[preddyi]

In both the routers,

1.Which NM modules are using ?

2.What is the IOS version ?

3.What type of WIC cards ?

[hbaerten]

The bandwidth parameter can be set using the "bandwidth" command in interface configuration mode:

test#sh int s0/0

Serial0/0 is administratively down, line protocol is down

Hardware is PowerQUICC Serial

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

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

...

test#conf t

Enter configuration commands, one per line. End with CNTL/Z.

test(config)#int s0/0

test(config-if)#bandwidth 1984

test(config-if)#^Z

test#sh int s0/0

Serial0/0 is administratively down, line protocol is down

Hardware is PowerQUICC Serial

MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec,

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

This parameter does not reflect the acutal available bandwidth, it is just a value used in (E)IGRP metric calculations.

hth

Herbert