Troubleshooting - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Output queue : (FIFO queuing : Size/Length/Discards)
Last 300 seconds input:
Last 300 seconds output:
5 packets input, 58 bytes, 0 drops
5 packets output, 54 bytes, 0 drops
On RouterA ping the remote IP address:
[3Com] ping 111.1.1.2
PING 111.1.1.2: 56
Reply from 111.1.1.2: bytes=56 Sequence=1 ttl=255 time=29 ms
Reply from 111.1.1.2: bytes=56 Sequence=2 ttl=255 time=31 ms
Reply from 111.1.1.2: bytes=56 Sequence=3 ttl=255 time=29 ms
Reply from 111.1.1.2: bytes=56 Sequence=4 ttl=255 time=30 ms
Reply from 111.1.1.2: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 111.1.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 29/29/31 ms
Note that in this approach to MP binding, all users are bound together and the concept
of virtual access is not involved.

1.7 Troubleshooting

Fault 1: Link never turns into up state.
Problem solving: This problem may arise because of the PPP authentication failure
due to the incorrect configuration of PPP authentication parameters.
Enable the debugging of PPP, and you will see the information describing that LCP
went up upon a successful LCP negotiation but went down after the PAP or CHAP
negotiation.
Fault 2: Physical link failed in going up.
Problem solving: Execute the display interface serial type number command to view
the current interface statuses, including:
"serial number is administratively down, line protocol is down", which indicates that
the interface has been shut down by the administrator.
"serial number is down, line protocol is down", which indicates that the interface is not
active or the physical layer has not gone up yet.
"Virtual-template number is down, line protocol is spoofing up", which indicates that
this interface is a dialer interface and the call establishment attempt has failed.
"serial number is up, line protocol is up", which indicates that the link negotiation, i.e.,
the LCP negotiation on this interface has succeeded.
0 bytes/sec, 0 packets/sec
0 bytes/sec, 0 packets/sec
data bytes, press CTRL_C to break
3Com Corporation
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Chapter 1 PPP and MP Configuration
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