Many errors on interfaces

[Greg Maaaag]

Hi everyone!

I've got router as vpn-concentrator which receives vpn site-to-site connections from 10 branches with cisco 881 and cisco 1941.

I started cacti monitoring and found out that there are too many errors on interfaces.

[URL=http://imageshack.us/photo/my-images/268/vyatta.jpg/][IMG]http://img268.imageshack.us/img268/235/vyatta.jpg[/IMG][/URL]

how can i find out source of problem?

[paolo bevilacqua]

Post "show interface" in text form.

[Greg Maaaag]

I forgot to mention that it's vyatta, debian + cli like cisco.

i restarted it 2 hours ago and this is the output:

show interfaces detail

eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000

    link/ether 00:50:56:01:02:38 brd ff:ff:ff:ff:ff:ff

    inet 89.223.6.92/27 brd 89.223.6.95 scope global eth0

    inet6 fe80::250:56ff:fe01:238/64 scope link

       valid_lft forever preferred_lft forever

    RX:  bytes    packets     errors    dropped    overrun      mcast

    1110826966    1531399         69         97          0          0

    TX:  bytes    packets     errors    dropped    carrier collisions

     822821404    1317997          0          0          0          0

eth1: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000

    link/ether 00:50:56:01:02:37 brd ff:ff:ff:ff:ff:ff

    inet 192.168.240.12/24 brd 192.168.240.255 scope global eth1

    inet6 fe80::250:56ff:fe01:237/64 scope link

       valid_lft forever preferred_lft forever

    RX:  bytes    packets     errors    dropped    overrun      mcast

     265768994     704018         25         97          0          0

    TX:  bytes    packets     errors    dropped    carrier collisions

     543872981     866248          0          0          0          0

eth2: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000

    link/ether 00:50:56:01:00:f5 brd ff:ff:ff:ff:ff:ff

    inet 192.168.181.12/24 brd 192.168.181.255 scope global eth2

    inet6 fe80::250:56ff:fe01:f5/64 scope link

       valid_lft forever preferred_lft forever

    RX:  bytes    packets     errors    dropped    overrun      mcast

       5977655      40004          1         97          0          0

    TX:  bytes    packets     errors    dropped    carrier collisions

       3151240      15922          0          0          0          0

l2tp0: mtu 1410 qdisc pfifo_fast state UNKNOWN qlen 100

    link/ppp

    inet 10.255.255.0 peer 192.168.180.104/32 scope global l2tp0

    Description: User: testuser (192.168.180.104)

    RX:  bytes    packets     errors    dropped    overrun      mcast

         15919        310          0          0          0          0

    TX:  bytes    packets     errors    dropped    carrier collisions

         15904        309          0          0          0          0

lo: mtu 16436 qdisc noqueue state UNKNOWN

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host

       valid_lft forever preferred_lft forever

    RX:  bytes    packets     errors    dropped    overrun      mcast

        111029       1792          0          0          0          0

    TX:  bytes    packets     errors    dropped    carrier collisions

        111029       1792          0          0          0          0

[paolo bevilacqua]

For Linux problems, ask some Linux forum.

[Greg Maaaag]

it's cli based os which communicates with ciscos so i decided to look for the answer on cisco forum.

Is there any algorythm of troubleshootung such errors on ciscos?

[patrick.preuss]

Hi

You have incoming packet Drops and errors usualy this Points to cabeling or Switch problems.

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