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Do not operate equal routing

we set the following config and version.

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

interface FastEthernet0/1

 no switchport

 bandwidth 5000

 ip address 10.0.88.98 255.255.255.252

!

interface FastEthernet0/2

 no switchport

 bandwidth 5000

 ip address 10.0.65.54 255.255.255.252

 speed 100

 duplex full

!

ip route 0.0.0.0 0.0.0.0 FastEthernet0/1 10.0.88.97

ip route 0.0.0.0 0.0.0.0 FastEthernet0/2 10.0.65.53

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

This is WS-C3550-24-PWR and the Version is 12.2(44)SE6.

 

show ip route

S*   0.0.0.0/0 [1/0] via 10.0.88.97, FastEthernet0/1

               [1/0] via 10.0.65.53, FastEthernet0/2

 

but the traffic do not flow on fa0/1(only Rx is flowing).

After upgrading IOS, this issue comes up.

I don't know what problem is.

 

C3550#sh int fa0/1

FastEthernet0/1 is up, line protocol is up (connected)

  Hardware is Fast Ethernet, address is 000f.23d2.2d80 (bia 000f.23d2.2d80)

  Internet address is 10.0.88.98/30

  MTU 1500 bytes, BW 5000 Kbit, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 248/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

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

  input flow-control is off, 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 07:28:40

  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 5373000 bits/sec, 648 packets/sec

  5 minute output rate 1000 bits/sec, 1 packets/sec

     20257639 packets input, 304311820 bytes, 0 no buffer

     Received 491 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 491 multicast, 0 pause input

     0 input packets with dribble condition detected

     38101 packets output, 3506824 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     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

 

C3550#sh int fa0/2

FastEthernet0/2 is up, line protocol is up (connected)

  Hardware is Fast Ethernet, address is 000f.23d2.2d80 (bia 000f.23d2.2d80)

   Internet address is 10.0.65.54/30

  MTU 1500 bytes, BW 5000 Kbit, DLY 100 usec,

     reliability 255/255, txload 57/255, rxload 122/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

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

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

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:00, output 00:00:02, output hang never

  Last clearing of "show interface" counters 07:28:43

  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 2395000 bits/sec, 399 packets/sec

  5 minute output rate 1124000 bits/sec, 840 packets/sec

     16451106 packets input, 4206692166 bytes, 0 no buffer

     Received 493 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 493 multicast, 0 pause input

     0 input packets with dribble condition detected

     33644613 packets output, 2228991756 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     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

 

 

 

  • LAN Switching and Routing
1 REPLY
Bronze

"Per-destination load

"Per-destination load balancing means the router distributes the packets based on the destination address. Given two paths to the same network, all packets for destination1 on that network go over the first path, all packets for destination2 on that network go over the second path, and so on. This preserves packet order, with potential unequal usage of the links. If one host receives the majority of the traffic all packets use one link, which leaves bandwidth on other links unused."

 

Have a look here:

http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5212-46.html

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