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3560G routed port connected to E1 converter

samaykhan79
Beginner
Beginner

Hi All

I have made a routed port on 3560G Switch and defined a pool 172.28.4.62 255.255.255.192 and connected to E1 converter RAD (4E1 to 4 FE) the E1 media is through Microwave on the other end same E1 converter is connected through layer 2 switch and defined a pool as of routed port configured in 3560G switch.

The port is generating lot of giants and after a while it also distrubs other routes ( Port1 to Port 16), configured with Vlan11 and port 22 as routed port.

I have checked the routed port through wireshark the maximum frame size is 1514 and configured the MTU to 1514, giants are not showing any more but after 10 to 12 hours switch gets hang. Either to shut the port or to reload the switch to get switch and other layer routes to be normal.

I have checked speed and duplex settings same as E1 converter. Full duplex. 100 Speed. Can you please guide why switch is not behaving normal. If i shutdown the routed port it is normal.

1. interface GigabitEthernet0/22

no switchport

ip address 172.28.4.62 255.255.255.192

flowcontrol receive on

end

2. #sh int g0/22

GigabitEthernet0/22 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is f025.7292.3bc3 (bia f025.7292.3bc3)

  Internet address is 172.28.4.62/26

  MTU 1514 bytes, BW 100000 Kbit/sec, DLY 100 usec,

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

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX

  input flow-control is on, output flow-control is unsupported

  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 08:12:58

  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 32000 bits/sec, 37 packets/sec

  5 minute output rate 29000 bits/sec, 30 packets/sec

     1511472 packets input, 193066909 bytes, 0 no buffer

     Received 329372 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 315319 multicast, 0 pause input

     0 input packets with dribble condition detected

     1388683 packets output, 204952330 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

3 #sh controllers ethernet-controller g0/22

     Transmit GigabitEthernet0/22             Receive

    208662623 Bytes                        196571703 Bytes

      1395739 Unicast frames                 1201317 Unicast frames

        16539 Multicast frames                320932 Multicast frames

         2139 Broadcast frames                 14295 Broadcast frames

            0 Too old frames               153120428 Unicast bytes

            0 Deferred frames               42497542 Multicast bytes

            0 MTU exceeded frames             952215 Broadcast bytes

            0 1 collision frames                   0 Alignment errors

            0 2 collision frames                   2 FCS errors

            0 3 collision frames                   0 Oversize frames

            0 4 collision frames                   0 Undersize frames

            0 5 collision frames                   0 Collision fragments

            0 6 collision frames

            0 7 collision frames               23168 Minimum size frames

            0 8 collision frames             1386857 65 to 127 byte frames

            0 9 collision frames               71215 128 to 255 byte frames

            0 10 collision frames              12671 256 to 511 byte frames

            0 11 collision frames               7251 512 to 1023 byte frames

            0 12 collision frames              35355 1024 to 1518 byte frames

            0 13 collision frames                  0 Overrun frames

            0 14 collision frames                  0 Pause frames

            0 15 collision frames

            0 Excessive collisions                 0 Symbol error frames

            0 Late collisions                      0 Invalid frames, too large

            0 VLAN discard frames                 29 Valid frames, too large

            0 Excess defer frames                  0 Invalid frames, too small

        68034 64 byte frames                       0 Valid frames, too small

      1167217 127 byte frames

       116592 255 byte frames                      0 Too old frames

        10709 511 byte frames                      0 Valid oversize frames

         4070 1023 byte frames                     0 System FCS error frames

        47795 1518 byte frames                     0 RxPortFifoFull drop frame

            0 Too large frames

            0 Good (1 coll) frames

            0 Good (>1 coll) frames

5 Replies 5

paolo bevilacqua
Hall of Fame Master Hall of Fame Master
Hall of Fame Master

Update switch software and check again.

Thanks this is current version i am using... can you please suggest which version to upgrade....

Switch Ports Model              SW Version            SW Image

------ ----- -----              ----------            ----------

*    1 28    WS-C3560G-24TS     15.0(2)SE2            C3560-IPSERVICESK9-M

I would try latest 12.2

Dear the version 15.0(2)SE2 is latest was released in 10-Feb 2013 whereas version 12.2.58-SE2 was released in 27-July 2011. should i downgrade the software version.

Just try, won't hurt.

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