Asymetrical DS3??

[abakhto]

I have a DS3 connection terninating to built-in DSU interfaces on 7204VXR at point A and 3660 router at point B.

There are no errors on the DS3 circuit.

When I copy a 200M file from point A to pint B the copy speed is 3 min. When I copy a 200M file from point B to pint A the copy speed is 100 min. I used several test computers on each end with the same relult.

Had anybody seen anything like that? What could possibly be wrong???

[dbellazetin]

Can you provide configuration details from both ends as well as show interface from the DS3 ports.

Is this a private point to point circuit or a VPN?

Do these routers plug into switches at each end doing VLANs, etc?

Daniel

[abakhto]

router A:

Serial3/0 is up, line protocol is up

Hardware is M1T-T3+ pa

Description: DS3 to SLC

Internet address is 10.254.0.246/30

MTU 1500 bytes, BW 44210 Kbit, DLY 200 usec,

reliability 255/255, txload 2/255, rxload 4/255

Encapsulation HDLC, crc 16, loopback not set

Keepalive set (10 sec)

Restart-Delay is 0 secs

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 00:06:08

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 787000 bits/sec, 142 packets/sec

5 minute output rate 394000 bits/sec, 131 packets/sec

52956 packets input, 33826566 bytes, 0 no buffer

Received 43 broadcasts, 0 runts, 0 giants, 0 throttles

0 parity

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

50276 packets output, 20695267 bytes, 0 underruns

0 output errors, 0 applique, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

rxLOS inactive, rxLOF inactive, rxAIS inactive

txAIS inactive, rxRAI inactive, txRAI inactive

router B

Serial1/0 is up, line protocol is up

Hardware is DSXPNM Serial

Description: DS3 to Berwyn

Internet address is 10.254.0.245/30

MTU 1500 bytes, BW 44210 Kbit, DLY 200 usec,

reliability 255/255, txload 4/255, rxload 2/255

Encapsulation HDLC, crc 16, loopback not set

Keepalive set (10 sec)

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 00:00:01

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 384000 bits/sec, 129 packets/sec

5 minute output rate 778000 bits/sec, 142 packets/sec

227 packets input, 79031 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

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

248 packets output, 153562 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

DSU mode 0, bandwidth 44210, real bandwidth 44210, scramble 1

[abakhto]

Is this a private point to point circuit or a VPN?

A:Point-to-point DS3

Do these routers plug into switches at each end doing VLANs, etc?

Yes.

[abakhto]

Router B:

controller T3 1/0

clock source line

cablelength 400

description DS3 to Berwyn

!

!

!

interface Serial1/0

description DS3 to Berwyn

mtu 1500

ip address 10.254.0.245 255.255.255.252

ip ospf network non-broadcast

ip ospf cost 1

dsu bandwidth 44210

scramble

Router A

interface Serial3/0

description DS3 to SLC

mtu 1500

ip address 10.254.0.246 255.255.255.252

ip ospf network non-broadcast

ip ospf cost 1

dsu bandwidth 44210

scramble

framing c-bit

cablelength 10

clock source internal

serial restart-delay 0

no cdp enable

!

[dbellazetin]

I don't see anything that would imply latency or problem's with your DS3 circuit.

What do the ethernet interfaces that are connected to the end user switch/switches look like?

Also from the test's you have done already were any sniffer captures taken?

Daniel

[abakhto]

I don't see anything that would imply latency or problem's with your DS3 circuit.

EXACTLY MY POINT

What do the ethernet interfaces that are connected to the end user switch/switches look like?

standard fa

Also from the test's you have done already were any sniffer captures taken?

What in particular do you suggest to look for in the sniffer captured. Looks like a standard SMB session to me.