Hi Joseph,
In my case, we are using 7206VXR NPE-G2 with PA-GE (port adapter) on IOS 12.4 (24) T6 with only 1 upstream running at default route BGP (not full routes). At about 160k pps the cpu is already 95-100% with less than 1% processes using cpu (mostly interrupts), with packet lossess happening.
As we are using this for VOIP the packet size is small (around 70 bytes/ packet), it is close to the 64 byte packets size as mentioned in the reference sheet.
At 160k pps both ways it is just too far away from the 1M pps (both ways or 2Mpps one way) as published by Cisco.
We are scheduling next Monday to redo the fibre termination to move from the PA-GE to the Gig E port on the main board before i change the IOS version. Also I wonder whether there is any problem with the buffers on my router. Details as below.
Appreciate any guidance/ideas on this issue. Thx in advance!
# show buffer
Buffer elements:
1118 in free list (1119 max allowed)
3518637367 hits, 0 misses, 619 created
Public buffer pools:
Small buffers, 104 bytes (total 101, permanent 50, peak 181 @ 1w0d):
100 in free list (20 min, 150 max allowed)
13322296 hits, 773 misses, 645 trims, 696 created
151 failures (0 no memory)
Middle buffers, 600 bytes (total 25, permanent 25, peak 153 @ 4d02h):
22 in free list (10 min, 150 max allowed)
4460521 hits, 353 misses, 656 trims, 656 created
23 failures (0 no memory)
Big buffers, 1536 bytes (total 50, permanent 50):
50 in free list (5 min, 150 max allowed)
3945565 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 11, permanent 10, peak 12 @ 3w3d):
10 in free list (0 min, 100 max allowed)
0 hits, 1 misses, 1 trims, 2 created
0 failures (0 no memory)
Large buffers, 5024 bytes (total 0, permanent 0):
0 in free list (0 min, 10 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Huge buffers, 18024 bytes (total 0, permanent 0):
0 in free list (0 min, 4 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Interface buffer pools:
Syslog ED Pool buffers, 600 bytes (total 282, permanent 282):
250 in free list (282 min, 282 max allowed)
644 hits, 0 misses
IPC buffers, 4096 bytes (total 2, permanent 2):
2 in free list (1 min, 8 max allowed)
0 hits, 0 fallbacks, 0 trims, 0 created
0 failures (0 no memory)
Header pools:
Header buffers, 0 bytes (total 511, permanent 256, peak 511 @ 3w3d):
255 in free list (256 min, 1024 max allowed)
171 hits, 85 misses, 0 trims, 255 created
0 failures (0 no memory)
256 max cache size, 256 in cache
2178139146 hits in cache, 0 misses in cache
Particle Clones:
1024 clones, 0 hits, 0 misses
Public particle pools:
F/S buffers, 128 bytes (total 512, permanent 512):
0 in free list (0 min, 512 max allowed)
512 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
512 max cache size, 512 in cache
0 hits in cache, 0 misses in cache
Normal buffers, 512 bytes (total 2048, permanent 2048):
2048 in free list (1024 min, 4096 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Private particle pools:
HQF buffers, 0 bytes (total 2000, permanent 2000):
2000 in free list (500 min, 2000 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
GigabitEthernet0/1 buffers, 512 bytes (total 1000, permanent 1000):
0 in free list (0 min, 1000 max allowed)
1000 hits, 0 fallbacks
1000 max cache size, 619 in cache
1977892200 hits in cache, 0 misses in cache
14 buffer threshold, 0 threshold transitions
GigabitEthernet0/2 buffers, 512 bytes (total 1000, permanent 1000):
0 in free list (0 min, 1000 max allowed)
1000 hits, 0 fallbacks
1000 max cache size, 872 in cache
3052455021 hits in cache, 0 misses in cache
14 buffer threshold, 0 threshold transitions
GigabitEthernet0/3 buffers, 512 bytes (total 1000, permanent 1000):
0 in free list (0 min, 1000 max allowed)
1000 hits, 0 fallbacks
1000 max cache size, 872 in cache
128 hits in cache, 0 misses in cache
14 buffer threshold, 0 threshold transitions
FastEthernet0/2 buffers, 768 bytes (total 530, permanent 400):
128 in free list (128 min, 1200 max allowed)
359 hits, 43 fallbacks, 304 trims, 434 created
0 failures (0 no memory)
400 max cache size, 274 in cache
2129934577 hits in cache, 2 misses in cache
14 buffer threshold, 1 threshold transitions
GigabitEthernet3/0 buffers, 768 bytes (total 2000, permanent 2000):
0 in free list (0 min, 2000 max allowed)
2000 hits, 0 misses
2000 max cache size, 1871 in cache
1486379008 hits in cache, 0 misses in cache
14 buffer threshold, 0 threshold transitions
