Hi,during 1 of the troubleshooting i found that there are high number of collisions in my WAN interface.And it caused the IP phone can't get registered in my HQ's CCM.But the phone will back on after 1 day or few hrs later.Is it due to duplex mismatch?
Would much appreciate if you can help me point out the problem.
description External LAN/WAN
ip address 184.108.40.206 255.255.255.240
ip access-group 130 in
ip inspect myfw out
ip nat outside
no ip route-cache cef
no ip route-cache
crypto map rtpex
service-policy output policyvoip
GigabitEthernet0/1 is up, line protocol is up
Hardware is MV96340 Ethernet, address is 0018.1891.6b39 (bia 0018.1891.6b39)
Description: External LAN/WAN
Internet address is 220.127.116.11/28
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 5/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 10Mb/s, media type is T
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 19:03:56
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Your line is set to Half-duplex, 10Mb/s on a Gigabit interface. Auto-negotiation of speed and duplex failed. Try to set manual the duplex and speed on the interface (should be the same on both sides) and then clear the counters and see if the collisions increase again.
What kind of connection you have there? As I see your config there is a regular line and it should be no modem there (maybe a switch or something) You can actually see the modem?
If you don't know for sure what is the opposite peer, try "show cdp neighbors detail" and if you are lucky enough to have a Cisco device as peer you can see the duplex and the speed you assume after the interface description.
Otherwise...I don't know.Ask your provider. They should give you all the necessary details related to their connection.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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