4506 port distribution

[FishDick]

Is there any advantage to distributing heavy users over different modules?

I have 4506 with 4 X WS4548

Right now all heavy users (servers) are on one particular module.

Throughput is not that great. Wondering if spreading them out between the other modules would help.

 

[vipergg]

It might not be a bad idea , though I would check the ports first for any kind of errors on the ports , for any port that is full duplex you should not see any kinds of errors on them .

 

[KiscoKid]

What kind of SUP module are you using in your 4500? Do you have any other modules in the switch that are loaded as well? Some of the newer SUP's have pretty good switching capacity so four fully-loaded 48 port 10/100 cards on their own won't trouble a newer SUP at all.

A layer 2 healthcheck would be a good move, i.e. checking for port CRC's/frame errors etc, ensuring duplex/speed are consistent between switch and hosts,

 

[FishDick]

The sup module is X4013+ SUPII+

I have one port (fiber to another switch) which is showing a bunch of input errors but no indication what the errors are.

GigabitEthernet2/5 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0000.XXXX.aaaa (bia 0000.XXXX.aaaa)
Description: Comm Center
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is SX
output flow-control is off, input flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:11, output never, output hang never
Last clearing of "show interface" counters 5d19h
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 11000 bits/sec, 11 packets/sec
5 minute output rate 102000 bits/sec, 12 packets/sec
1422182 packets input, 360698194 bytes, 0 no buffer
Received 129055 broadcasts (117415 multicast)
0 runts, 0 giants, 0 throttles
6707520 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
1814689 packets output, 1222700398 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 output buffer failures, 0 output buffers swapped out

No errors on the connected switch port.

GigabitEthernet0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0001.xxxx.aaaa (bia 0001.xxxx.aaaa)
Description: sw01 connection
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is SX
input flow-control is off, output flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:06, output hang never
Last clearing of "show interface" counters never
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 80000 bits/sec, 7 packets/sec
5 minute output rate 10000 bits/sec, 5 packets/sec
650784 packets input, 479476867 bytes, 0 no buffer
Received 127007 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 126987 multicast, 0 pause input
0 input packets with dribble condition detected
483745 packets output, 116496872 bytes, 0 underruns
0 output errors, 0 collisions, 2 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

 

[RookThis]

Interface G2/5 indicates that it is taking 6707520 input errors, since it's last clearing: 5d19h

I would try cleaning the fiber ends, or swapping out the gbics, or systematically moving each end to a new gig port.