High queue drop rate

Hi guys,


I have a question.
I need to deny the multicast range from the routers access point, so the range for that is Class D 224.0.0.0 through 239.255.255.255 .
I have also the cisco work running and since then, i am receiving from the monitoring console messages like: "The number of packets discarded due to input or output queue overflow has exceeded its threshold" with events perfomance exceptions from the access points.
I think it's because of the deny multicast, but i must deny that kind of traffic. That kind of messages are a problem? How can i solve this?
Yes we have applications that use multicast, but we do not want that kind of traffic on the wireless network. Only the AP's have that traffice denied.

Thank you very much

 

This can be attributed to various things but the majority of teh time its the equipment isn't quick enough to deal with the incoming requests. How many nodes do you have and just to confirm this is on the WAP isn't it?

 

Nodes? On the wireless network? It depends, at most of the time we could have 10 or less.
"the equipment isn't quick enough to deal with the incoming requests "
I think the problem is not here! The wireless router is one of the best! I HOPE

 

What would be the chances of a show tech and a show buffers off the device ? Assuming its a cisco device ?

 

You're right, is a cisco device. Aironet 1000 Series.

 

The show buffeer result is listed bellow:

Header DataArea Pool Rcnt Size Link Enc Flags Input Output

7AD10C E0002C Small 0 24 0 0 0 None None
7AD400 E00160 Small 0 62 0 0 0 None None
7AD6F4 E00294 Small 0 76 0 0 0 None None
7AD9E8 E003C8 Small 1 76 0 0 0 None None
7ADCDC E004FC Small 0 24 0 0 0 None None
7ADFD0 E00630 Small 0 54 0 0 0 None None
7AE2C4 E00764 Small 0 86 0 0 0 None None
7AE5B8 E00898 Small 0 56 0 0 0 None None
7AE8AC E009CC Small 0 24 0 0 0 None None
7AEBA0 E00B00 Small 0 76 0 0 0 None None
7AEE94 E00C34 Small 0 24 0 0 0 None None
7AF188 E00D68 Small 0 76 0 0 0 None None
7AF47C E00E9C Small 0 24 0 0 0 None None
7AF770 E00FD0 Small 0 56 0 0 0 None None
7AFA64 E01104 Small 0 56 0 0 0 None None
7AFD58 E01238 Small 0 76 0 0 0 None None
7B004C E0136C Small 0 76 0 0 0 None None
7B0340 E014A0 Small 0 24 0 0 0 None None
7B0634 E015D4 Small 0 24 0 0 0 None None
7B0928 E01708 Small 0 24 0 0 0 None None
7B0C1C E0183C Small 0 56 0 0 0 None None
7B0F10 E01970 Small 0 56 0 0 0 None None
7B1204 E01AA4 Small 0 56 0 0 0 None None
7B14F8 E01BD8 Small 0 64 0 0 0 None None
7B17EC E01D0C Small 0 54 0 0 0 None None
7B1AE0 E01E40 Middl 0 176 0 0 0 None None
7B1DD4 E02164 Middl 0 60 0 0 0 None None
7B20C8 E02488 Middl 1 60 0 0 0 None None
7B23BC E027AC Middl 2 60 38 1 0 BV1 None
7B26B0 E02AD0 Middl 2 590 38 1 0 BV1 None
7B29A4 E02DF4 Middl 0 60 0 0 0 None None
7B2C98 E03118 Middl 0 237 0 0 0 None None
7B2F8C E0343C Middl 2 590 38 1 0 BV1 None
7B3280 E03760 Middl 2 590 38 1 0 BV1 None
7B3574 E03A84 Middl 0 60 0 0 0 None None
7B3868 E03DA8 Middl 2 590 38 1 0 BV1 None
7B3B5C E040CC Middl 0 60 0 0 0 None None
7B3E50 E043F0 Middl 0 60 0 0 0 None None
7B4144 E04714 Middl 0 237 0 0 0 None None
7B4438 E04A38 Middl 0 176 0 0 0 None None
7B472C E04D5C Big 0 121 0 0 0 None None
7B4A20 E05428 Big 0 411 0 0 0 None None
7B4D14 E05AF4 Big 0 386 0 0 0 None None
7B5008 E061C0 Big 0 121 0 0 0 None None
7B52FC E0688C Big 0 121 0 0 0 None None
82F55C E3F934 FastE 0 60 0 0 0 None None
82F850 E3FFF4 FastE 1 0 0 0 0 None None
82FB44 E406B4 FastE 1 60 7 1 800 None None
--More--   82FE38 E40D74 FastE 0 60 0 0 0 None None
83012C E41434 FastE 1 0 0 0 0 None None
830420 E41AF4 FastE 1 60 7 1 800 None None
830714 E421B4 FastE 1 1508 0 0 0 None None
830A08 E42874 FastE 1 0 0 0 0 None None
830CFC E42F34 FastE 1 0 0 0 0 None None
830FF0 E435F4 FastE 0 60 0 0 0 None None
8312E4 E43CB4 FastE 1 0 0 0 0 None None
8315D8 E44374 FastE 1 1508 0 0 0 None None
8318CC E44A34 FastE 0 60 0 0 0 None None
831BC0 E450F4 FastE 1 0 0 0 0 None None
831EB4 E457B4 FastE 1 0 0 0 0 None None
8321A8 E45E74 FastE 0 60 0 0 0 None None
83249C E46534 FastE 1 0 0 0 0 None None
832790 E46BF4 FastE 1 0 0 0 0 None None
832A84 E472B4 FastE 1 108 0 0 0 None None
832D78 E47974 FastE 1 0 0 0 0 None None
846158 E06F58 Dot11 0 342 0 0 0 None None
84644C E07984 Dot11 0 56 0 0 0 None None
846740 E083B0 Dot11 0 85 0 0 0 None None
846A34 E08DDC Dot11 0 60 0 0 0 None None
846D28 E09808 Dot11 0 107 0 0 0 None None
84701C E0A234 Dot11 0 56 0 0 0 None None
847310 E0AC60 Dot11 0 107 0 0 0 None None
847604 E0B68C Dot11 0 56 0 0 0 None None
8478F8 E0C0B8 Dot11 0 77 0 0 0 None None
847BEC E0CAE4 Dot11 0 838 0 0 0 None None
847EE0 E0D510 Dot11 0 107 0 0 0 None None
8481D4 E0DF3C Dot11 0 278 0 0 0 None None
8484C8 E0E968 Dot11 0 62 0 0 0 None None
8487BC E0F394 Dot11 0 56 0 0 0 None None
848AB0 E0FDC0 Dot11 0 182 0 0 0 None None
848DA4 E107EC Dot11 0 56 0 0 0 None None
849098 E11218 Dot11 0 172 0 0 0 None None
84938C E11C44 Dot11 0 56 0 0 0 None None
849680 E12670 Dot11 1 58 0 0 0 None None
849974 E1309C Dot11 0 56 0 0 0 None None
849C68 E13AC8 Dot11 0 56 0 0 0 None None
849F5C E144F4 Dot11 1 60 0 0 0 None None
84A250 E14F20 Dot11 0 60 0 0 0 None None
84A544 E1594C Dot11 0 56 0 0 0 None None
84A838 E16378 Dot11 0 389 0 0 0 None None
84AB2C E16DA4 Dot11 0 278 0 0 0 None None
84AE20 E177D0 Dot11 0 172 0 0 0 None None
84B114 E181FC Dot11 1 58 0 0 0 None None
84B408 E18C28 Dot11 1 60 0 0 0 None None
84B6FC E19654 Dot11 0 166 0 0 0 None None
84BB78 E1A080 Dot11 0 1508 0 0 0 None None
84BE6C E1A7D8 Dot11 0 1508 0 0 0 None None
84C160 E1AF30 Dot11 0 1508 0 0 0 None None
84C454 E1B688 Dot11 0 1508 0 0 0 None None
--More--   84C748 E1BDE0 Dot11 0 354 0 0 0 None None
84CA3C E1C538 Dot11 0 124 0 0 0 None None
84CD30 E1CC90 Dot11 0 1508 0 0 0 None None
84D024 E1D3E8 Dot11 0 69 0 0 0 None None
84D318 E1DB40 Dot11 0 56 0 0 0 None None
84D60C E1E298 Dot11 0 1508 0 0 0 None None
84D900 E1E9F0 Dot11 0 1508 0 0 0 None None
84DBF4 E1F148 Dot11 0 1508 0 0 0 None None
84DEE8 E1F8A0 Dot11 0 1508 0 0 0 None None
84E1DC E1FFF8 Dot11 0 1508 0 0 0 None None
84E4D0 E20750 Dot11 0 1508 0 0 0 None None
84E7C4 E20EA8 Dot11 0 1508 0 0 0 None None
84EAB8 E21600 Dot11 0 1508 0 0 0 None None
84EDAC E21D58 Dot11 0 1508 0 0 0 None None
84F0A0 E224B0 Dot11 0 1508 0 0 0 None None
84F394 E22C08 Dot11 0 1508 0 0 0 None None
84F688 E23360 Dot11 0 552 0 0 0 None None
84F97C E23AB8 Dot11 0 1508 0 0 0 None None
84FC70 E24210 Dot11 0 1508 0 0 0 None None
84FF64 E24968 Dot11 0 58 0 0 0 None None
850258 E250C0 Dot11 0 1508 0 0 0 None None
85054C E25818 Dot11 0 720 0 0 0 None None
850840 E25F70 Dot11 0 1364 0 0 0 None None
850B34 E266C8 Dot11 0 54 0 0 0 None None
850E28 E26E20 Dot11 0 1508 0 0 0 None None
85111C E27578 Dot11 0 1508 0 0 0 None None
851410 E27CD0 Dot11 0 1508 0 0 0 None None
851704 E28428 Dot11 0 187 0 0 0 None None
8519F8 E28B80 Dot11 0 1508 0 0 0 None None
851CEC E292D8 Dot11 0 54 0 0 0 None None
851FE0 E29A30 Dot11 0 1508 0 0 0 None None
8522D4 E2A188 Dot11 0 1465 0 0 0 None None
8525C8 E2A8E0 Dot11 0 54 0 0 0 None None
8528BC E2B038 Dot11 0 1416 0 0 0 None None
852BB0 E2B790 Dot11 0 1483 0 0 0 None None
852EA4 E2BEE8 Dot11 0 1508 0 0 0 None None
853198 E2C640 Dot11 0 1508 0 0 0 None None
85348C E2CD98 Dot11 0 1508 0 0 0 None None
853780 E2D4F0 Dot11 0 1508 0 0 0 None None
853A74 E2DC48 Dot11 0 1508 0 0 0 None None
853D68 E2E3A0 Dot11 0 54 0 0 0 None None
85405C E2EAF8 Dot11 0 54 0 0 0 None None
854350 E2F250 Dot11 0 1508 0 0 0 None None
854644 E2F9A8 Dot11 0 1508 0 0 0 None None
854938 E30100 Dot11 0 1508 0 0 0 None None
854C2C E30858 Dot11 0 1508 0 0 0 None None
854F20 E30FB0 Dot11 0 54 0 0 0 None None
855214 E31708 Dot11 0 1508 0 0 0 None None
855508 E31E60 Dot11 0 1508 0 0 0 None None
8557FC E325B8 Dot11 0 1508 0 0 0 None None
855AF0 E32D10 Dot11 0 1508 0 0 0 None None
--More--   855DE4 E33468 Dot11 0 54 0 0 0 None None
8560D8 E33BC0 Dot11 0 1508 0 0 0 None None
8563CC E34318 Dot11 0 1508 0 0 0 None None
8566C0 E34A70 Dot11 0 54 0 0 0 None None
8569B4 E351C8 Dot11 0 1508 0 0 0 None None
856CA8 E35920 Dot11 0 268 0 0 0 None None
856F9C E36078 Dot11 0 1508 0 0 0 None None
857290 E367D0 Dot11 0 58 0 0 0 None None
857584 E36F28 Dot11 0 1288 0 0 0 None None
857878 E37680 Dot11 0 1508 0 0 0 None None
857B6C E37DD8 Dot11 0 1508 0 0 0 None None
857E60 E38530 Dot11 0 1508 0 0 0 None None
858154 E38C88 Dot11 0 1508 0 0 0 None None
858448 E393E0 Dot11 0 1508 0 0 0 None None
85873C E39B38 Dot11 0 54 0 0 0 None None
858A30 E3A290 Dot11 0 54 0 0 0 None None
858D24 E3A9E8 Dot11 0 1508 0 0 0 None None
859018 E3B140 Dot11 0 292 0 0 0 None None
85930C E3B898 Dot11 0 1508 0 0 0 None None
859600 E3BFF0 Dot11 0 1508 0 0 0 None None
8598F4 E3C748 Dot11 0 354 0 0 0 None None
859BE8 E3CEA0 Dot11 0 54 0 0 0 None None
859EDC E3D5F8 Dot11 0 354 0 0 0 None None
85A1D0 E3DD50 Dot11 0 354 0 0 0 None None
85A4C4 E3E4A8 Dot11 0 161 0 0 0 None None
85CBCC E48034 FastE 1 60 0 0 0 None None
85CEC0 E486F4 FastE 1 0 0 0 0 None None
85D1B4 E48DB4 FastE 0 60 0 0 0 None None
85D4A8 E49474 FastE 1 0 0 0 0 None None
85D79C E49B34 FastE 1 60 0 0 0 None None
85DA90 E4A1F4 FastE 1 0 0 0 0 None None
85DD84 E4A8B4 FastE 1 60 7 1 800 None None
85E078 E4AF74 FastE 0 60 0 0 0 None None
85E36C E4B634 FastE 1 0 0 0 0 None None
85E660 E4BCF4 FastE 1 60 0 0 0 None None
85E954 E4C3B4 FastE 1 0 0 0 0 None None
85EC48 E4CA74 FastE 1 60 7 1 800 None None
8C1808 E4F2D4 Large 0 0 0 0 0 None None
91E45C E57AB0 Small 0 0 0 0 0 None None
94E000 E572BC Small 0 0 0 0 0 None None
965D94 E57714 Small 0 0 0 0 0 None None
966F34 E4EC08 Big 0 0 0 0 0 None None
96DE3C E4E744 Small 0 60 0 0 0 None None
96E358 E573F0 Small 0 60 0 0 0 None None
9700A8 E4D268 VeryB 0 0 0 0 0 None None
972DB0 E4E4DC Small 0 0 0 0 0 None None
9731EC E57D18 Huge 0 0 0 0 0 None None
9BD7F4 E55F14 VeryB 1 4351 0 0 0 None None
9D8718 E4E610 Small 0 0 0 0 0 None None
9DD2FC E57848 Small 0 0 0 0 0 None None
9DD9F8 E4D134 Small 0 60 0 0 0 None None
--More--   9E02F0 E50740 Big 0 0 0 0 0 None None
9E05E4 E50E0C Big 0 0 0 0 0 None None
9E08D8 E514D8 Big 0 121 0 0 0 None None
9E0CE0 E57BE4 Small 0 0 0 0 0 None None
9E1134 E57188 Small 0 0 0 0 0 None None
9E920C E51BA4 Middl 0 0 0 0 0 None None
9E9500 E51EC8 Middl 0 0 0 0 0 None None
9E97F4 E521EC Middl 0 590 0 0 0 None None
9E9AE8 E52510 Middl 0 0 0 0 0 None None
9E9DDC E52834 Middl 0 0 0 0 0 None None
9EA0D0 E52B58 Middl 0 60 0 0 0 None None
A0D724 E5797C Small 0 60 0 0 0 None None

 

the show buffers here:

Buffer elements:
497 in free list (500 max allowed)
132965729 hits, 0 misses, 0 created

Public buffer pools:
Small buffers, 104 bytes (total 37, permanent 25, peak 92 @ 7w0d):
36 in free list (20 min, 60 max allowed)
287022338 hits, 10210 misses, 26100 trims, 26112 created
90 failures (0 no memory)
Middle buffers, 600 bytes (total 21, permanent 15, peak 80 @ 7w0d):
19 in free list (10 min, 30 max allowed)
32363793 hits, 2501 misses, 4915 trims, 4921 created
16 failures (0 no memory)
Big buffers, 1536 bytes (total 10, permanent 5, peak 67 @ 7w0d):
10 in free list (5 min, 10 max allowed)
14037310 hits, 153571 misses, 233032 trims, 233037 created
25717 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 2, permanent 0, peak 16 @ 7w0d):
1 in free list (0 min, 10 max allowed)
399 hits, 1583 misses, 3509 trims, 3511 created
1582 failures (0 no memory)
Large buffers, 5024 bytes (total 1, permanent 0, peak 9 @ 7w0d):
1 in free list (0 min, 5 max allowed)
166 hits, 1416 misses, 2574 trims, 2575 created
1416 failures (0 no memory)
Huge buffers, 18024 bytes (total 1, permanent 0, peak 6 @ 7w0d):
1 in free list (0 min, 2 max allowed)
99 hits, 1317 misses, 2572 trims, 2573 created
1317 failures (0 no memory)

Interface buffer pools:
FastEthernet0 buffers, 1524 bytes (total 32, permanent 32):
8 in free list (0 min, 32 max allowed)
4031261 hits, 1085410 fallbacks
8 max cache size, 7 in cache
409872436 hits in cache, 5116647 misses in cache
Dot11Radio0Psp buffers, 1676 bytes (total 80, permanent 80):
80 in free list (0 min, 80 max allowed)
84619 hits, 0 fallbacks
Dot11Radio0 buffers, 2400 bytes (total 30, permanent 30):
26 in free list (0 min, 30 max allowed)
35868124 hits, 0 fallbacks

 

Well according to that you don't have any buffer issues.

 

Yup!
Any ideas?