Georg,
That's what's odd, I cannot replicate packet loss with pings, but we have had complaints from users about streaming video buffering and pixelation, and people complain of download fails on large files. I could privately send the complete configuration, not cannot publicly due to employee rules. I can tell you that this is a fairly dumb switch, pure layer two distribution. All of the ports are basically configured like the one I previously provided. All LAN policy is being enforced at the 6800 series core or 2960-X series access edge. These 3850s are trunks in and trunks out, with no policy, other than the one you had me test. Here is the show buffers output:
SwitchA#show buffers
Buffer elements:
2171 in free list
176558819 hits, 0 misses, 2270 created
Public buffer pools:
Small buffers, 104 bytes (total 6144, permanent 6144):
6143 in free list (2048 min, 8192 max allowed)
283430448 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Medium buffers, 256 bytes (total 3000, permanent 3000):
2994 in free list (64 min, 3000 max allowed)
25997005 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Middle buffers, 600 bytes (total 512, permanent 512):
511 in free list (64 min, 1024 max allowed)
62702327 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Big buffers, 1536 bytes (total 1000, permanent 1000):
1000 in free list (64 min, 2000 max allowed)
242602015 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 10, permanent 10, peak 66 @ 1w2d):
10 in free list (0 min, 100 max allowed)
4296680 hits, 73 misses, 146 trims, 146 created
0 failures (0 no memory)
Large buffers, 9240 bytes (total 20, permanent 20):
20 in free list (10 min, 30 max allowed)
8106 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Huge buffers, 18024 bytes (total 2, permanent 2, peak 5 @ 6d08h):
2 in free list (0 min, 13 max allowed)
376613 hits, 47 misses, 94 trims, 94 created
0 failures (0 no memory)
Interface buffer pools:
CF Small buffers, 104 bytes (total 101, permanent 100, peak 101 @ 4w2d):
101 in free list (100 min, 200 max allowed)
0 hits, 0 misses, 273 trims, 274 created
0 failures (0 no memory)
UDLD Private Pool buffers, 256 bytes (total 120, permanent 120):
60 in free list (60 min, 120 max allowed)
60 hits, 0 fallbacks, 0 trims, 0 created
0 failures (0 no memory)
60 max cache size, 60 in cache
0 hits in cache, 0 misses in cache
Generic ED Pool buffers, 512 bytes (total 101, permanent 100, peak 101 @ 4w2d):
101 in free list (100 min, 100 max allowed)
0 hits, 0 misses
CF Middle buffers, 600 bytes (total 101, permanent 100, peak 101 @ 4w2d):
101 in free list (100 min, 200 max allowed)
0 hits, 0 misses, 273 trims, 274 created
0 failures (0 no memory)
LI Middle buffers, 600 bytes (total 512, permanent 256, peak 512 @ 4w2d):
256 in free list (256 min, 768 max allowed)
171 hits, 85 fallbacks, 0 trims, 256 created
0 failures (0 no memory)
256 max cache size, 256 in cache
0 hits in cache, 0 misses in cache
Syslog ED Pool buffers, 600 bytes (total 433, permanent 432, peak 433 @ 4w2d):
401 in free list (432 min, 432 max allowed)
687 hits, 0 misses
CF Big buffers, 1536 bytes (total 26, permanent 25, peak 26 @ 4w2d):
26 in free list (25 min, 50 max allowed)
0 hits, 0 misses, 273 trims, 274 created
0 failures (0 no memory)
LI Big buffers, 1536 bytes (total 512, permanent 256, peak 512 @ 4w2d):
256 in free list (256 min, 768 max allowed)
171 hits, 85 fallbacks, 0 trims, 256 created
0 failures (0 no memory)
256 max cache size, 256 in cache
0 hits in cache, 0 misses in cache
mgmt0 buffers, 2240 bytes (total 2400, permanent 2400):
1200 in free list (0 min, 2400 max allowed)
1200 hits, 0 fallbacks
1200 max cache size, 176 in cache
1024 hits in cache, 0 misses in cache
IPC buffers, 4096 bytes (total 18042, permanent 18042):
18038 in free list (6014 min, 60140 max allowed)
15144581 hits, 0 fallbacks, 0 trims, 0 created
0 failures (0 no memory)
CF VeryBig buffers, 4520 bytes (total 3, permanent 2, peak 3 @ 4w2d):
3 in free list (2 min, 4 max allowed)
0 hits, 0 misses, 273 trims, 274 created
0 failures (0 no memory)
LI Very Big buffers, 4520 bytes (total 256, permanent 128, peak 256 @ 4w2d):
128 in free list (128 min, 384 max allowed)
86 hits, 42 fallbacks, 0 trims, 128 created
0 failures (0 no memory)
128 max cache size, 128 in cache
0 hits in cache, 0 misses in cache
CF Large buffers, 5024 bytes (total 2, permanent 1, peak 2 @ 4w2d):
2 in free list (1 min, 2 max allowed)
0 hits, 0 misses, 273 trims, 274 created
0 failures (0 no memory)
IPC Medium buffers, 16384 bytes (total 2, permanent 2):
2 in free list (1 min, 8 max allowed)
361945 hits, 0 fallbacks, 0 trims, 0 created
0 failures (0 no memory)
Private Huge IPC buffers, 18024 bytes (total 2, permanent 2):
2 in free list (0 min, 13 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Private Huge buffers, 65280 bytes (total 2, permanent 2):
2 in free list (0 min, 13 max allowed)
2 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
IPC Large buffers, 65535 bytes (total 17, permanent 16, peak 17 @ 4w2d):
17 in free list (16 min, 16 max allowed)
0 hits, 0 misses, 44162 trims, 44163 created
0 failures (0 no memory)
Header pools:
Particle Clones:
1024 clones, 0 hits, 0 misses
Public particle pools:
Global FS Particle Pool buffers, 704 bytes (total 512, permanent 512):
0 in free list (0 min, 512 max allowed)
512 hits, 0 misses
512 max cache size, 512 in cache
0 hits in cache, 0 misses in cache
Private particle pools:
IBC0/1 buffers, 704 bytes (total 114688, permanent 114688):
0 in free list (114688 min, 114688 max allowed)
114688 hits, 0 misses
114688 max cache size, 57344 in cache
139935898 hits in cache, 0 misses in cache
