Mam pytanie - jak w tytule
otoz na egress interface na switchu widze spora ilsoc 'output drops'. Z tego co wyczytalem najprawdopodobniej moze to byc przyczyna zle skonfigurowanego QoSa o ile link nie jest 'zapchany' w 100% (a nie jest).
Probowalem 'zwalczyc' to wg ponizszego guide-a:
http://www.cisco.com/c/en/us/support/do ... os-00.html
Bezskutecznie,
Ostateczna konfiguracja wyglada tak:
Kod: Zaznacz cały
mls qos map policed-dscp 31 46 to 0
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos
interface FastEthernet4/0/48
switchport access vlan 100
duplex full
srr-queue bandwidth share 1 5 80 5
srr-queue bandwidth shape 2 0 0 0
priority-queue out
mls qos trust dscp
end
Teraz z ponizszego wynika ze i Voice i af31 traffic jest droppowany pomimo:
1- przydzieleniu 50% bandwidth-u podczas congestion (voice)
2- link utilization w dalszym ciagu jest ok 12% (outbound)
Kod: Zaznacz cały
FastEthernet4/0/48 is up, line protocol is up (connected)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 31/255, rxload 67/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
Media-type configured as connector
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:29, output 00:00:16, output hang never
Last clearing of "show interface" counters 00:40:29
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 11853
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 26297000 bits/sec, 4124 packets/sec
5 minute output rate 12519000 bits/sec, 3831 packets/sec
11362878 packets input, 9744634261 bytes, 0 no buffer
Received 1211 broadcasts (1211 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1211 multicast, 0 pause input
0 input packets with dribble condition detected
9959157 packets output, 3389502886 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
sh mls qos interface fastEthernet 4/0/48 statistics
FastEthernet4/0/48 (All statistics are in packets)
dscp: incoming
-------------------------------
0 - 4 : 10047111 0 0 0 0
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 0 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 23478042 0 0 0
30 - 34 : 0 0 0 0 0
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 0
45 - 49 : 0 2507661 0 3966 0
50 - 54 : 0 0 0 0 0
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
dscp: outgoing
-------------------------------
0 - 4 : 10186079 0 173 0 58
5 - 9 : 0 0 0 0 0
10 - 14 : 66 0 0 0 0
15 - 19 : 0 0 0 1153 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 7127207 0 0 0
30 - 34 : 0 0 0 0 239
35 - 39 : 0 0 0 0 0
40 - 44 : 0 0 0 0 4977
45 - 49 : 0 13233785 0 99009 0
50 - 54 : 275 0 0 0 42
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
cos: incoming
-------------------------------
0 - 4 : 36037711 0 0 0 0
5 - 7 : 0 0 0
cos: outgoing
-------------------------------
0 - 4 : 10186324 66 1153 7127207 239
5 - 7 : 13238762 99326 0
output queues enqueued:
queue: threshold1 threshold2 threshold3
-----------------------------------------------
queue 0: 13238763 0 0
queue 1: 8852187 1348252 41918
queue 2: 7128249 0 0
queue 3: 95594 0 0
output queues dropped:
queue: threshold1 threshold2 threshold3
-----------------------------------------------
queue 0: 9152 0 0
queue 1: 104 0 0
queue 2: 8845 0 0
queue 3: 0 0 0
Policer: Inprofile: 0 OutofProfile: 0
Najbardziej dziwnym 'zjawiskiem' jest to ze link uzywa bandwidth-u w ok 12% a w dalszym ciagu zrzuca pakiety. Jakas porada?
Z gory dzieki za wszelkie porady,
Pzdro