[c-nsp] Router 7500 internal buffers Errors

[Rodney Dunn]

No ignore it.

Search for 7500 receive side buffering on CCO and read that doc.

However, is that a GEIP or a GEIP+. Since you are seeing overruns
and with those packet rates I bet you are overrunning the GEIP cpu.

If that's true you need a different box or move some traffic off that
GEIP (ie: buy another one and do some load balancing).

Rodney


On Tue, May 16, 2006 at 06:15:48PM -0500, Alexandra Alvarado wrote:
> Hello,
> 
> 
> When I put the "show interface gigabitethernet 0/0/0" output command in the
> Cisco Output Interpreter I get the next message:
> 
> "WARNING: 59753 packets have been 'ignored' by the interface because the
> interface hardware ran low on internal buffers"
> 
> But when I put the 'show buffers' command output I get: No Significant
> Errors to report.
> 
> Today I had to reload the router because the network went down, how I can
> solve the problem?
> 
> Do I need to apply Buffer Tuning?
> 
> Thanks
> 
> Alexandra Alvarado
> 
> 
> # show interfaces GigabitEthernet 0/0/0
> GigabitEthernet0/0/0 is up, line protocol is up 
>   Hardware is cyBus GigabitEthernet Interface, address is 0002.7eae.5000
> (bia 0002.7eae.5000)
>   Description: VLAN2_Gye
>   Internet address is 10.201.12.243/29
>   MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 
>      reliability 255/255, txload 11/255, rxload 33/255
>   Encapsulation ARPA, loopback not set
>   Keepalive set (10 sec)
>   Full-duplex, 1000Mb/s, link type is autonegotiation, media type is SX
>   output flow-control is unsupported, input 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 01:16:28
>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 13
>   Queueing strategy: fifo
>   Output queue: 0/40 (size/max)
>   30 second input rate 130694000 bits/sec, 26914 packets/sec
>   30 second output rate 43999000 bits/sec, 22908 packets/sec
>      130060243 packets input, 300056432 bytes, 0 no buffer
>      Received 3298 broadcasts, 0 runts, 0 giants, 0 throttles
>      0 input errors, 0 CRC, 0 frame, 1994 overrun, 59753 ignored
>      0 watchdog, 2111 multicast, 0 pause input
>      0 input packets with dribble condition detected
>      113173132 packets output, 2723023159 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
> 
> # show buffers
> Buffer elements:
>      498 in free list (500 max allowed)
>      1460835 hits, 0 misses, 0 created
> 
> Public buffer pools:
> Small buffers, 104 bytes (total 960, permanent 960):
>      934 in free list (20 min, 2000 max allowed)
>      1446638 hits, 0 misses, 0 trims, 0 created
>      0 failures (0 no memory)
> Middle buffers, 600 bytes (total 720, permanent 720):
>      718 in free list (20 min, 1600 max allowed)
>      267618 hits, 0 misses, 0 trims, 0 created
>      0 failures (0 no memory)
> Big buffers, 1536 bytes (total 720, permanent 720):
>      720 in free list (10 min, 2400 max allowed)
>      2967028 hits, 0 misses, 0 trims, 0 created
>      0 failures (0 no memory)
> VeryBig buffers, 4520 bytes (total 80, permanent 80):
>      80 in free list (5 min, 2400 max allowed)
>      0 hits, 0 misses, 0 trims, 0 created
>      0 failures (0 no memory)
> Large buffers, 5024 bytes (total 80, permanent 80):
>      80 in free list (3 min, 240 max allowed)
>      0 hits, 0 misses, 0 trims, 0 created
>      0 failures (0 no memory)
> Huge buffers, 18024 bytes (total 5, permanent 0, peak 5 @ 04:14:00):
>      4 in free list (3 min, 104 max allowed)
>      0 hits, 1 misses, 2 trims, 7 created
>      0 failures (0 no memory)
> 
> Interface buffer pools:
> IPC buffers, 4096 bytes (total 624, permanent 624):
>      624 in free list (208 min, 2080 max allowed)
>      3015708 hits, 0 fallbacks, 0 trims, 0 created
>      0 failures (0 no memory)
> 
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