Hello All,
I am using cisco c9200 catalyst, I have traffic in this router 20000 frame/second and my bandwidth can handle 12500 frame/second my frames are 1000bytes, I am seeing almost 0.1s for end-to-end delay and 37.5% as loss.
i expect to see changes in delay and loss when i change the queue-sizes by the cmd hold-queue X out but this has zero impact on the output
BPE_LAB_Cisco9200_0001#sh interface g1/0/2
GigabitEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 683b.7852.0102 (bia 683b.7852.0102)
Description: R2-Cisco9200_0003 Ge1/0/2
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 236/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:05, output hang never
Last clearing of "show interface" counters 00:20:19
Input queue: 0/1000/0/0 (size/max/drops/flushes); Total output drops: 7948700
Queueing strategy: fifo
Output queue: 0/1000 (size/max)
5 minute input rate 3000 bits/sec, 3 packets/sec
5 minute output rate 92872000 bits/sec, 11847 packets/sec
4577 packets input, 468286 bytes, 0 no buffer
Received 807 broadcasts (807 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 807 multicast, 0 pause input
0 input packets with dribble condition detected
13255975 packets output, 12987951367 bytes, 0 underruns
Output 0 broadcasts (0 multicasts)
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
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
BPE_LAB_Cisco9200_0001#sh interface vlan 10
Vlan10 is up, line protocol is up , Autostate Enabled
Hardware is Ethernet SVI, address is 683b.7852.0146 (bia 683b.7852.0146)
Internet address is 1.0.7.2/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 23/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:03, output 00:00:09, output hang never
Last clearing of "show interface" counters 00:21:25
Input queue: 0/10/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/10 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 93855000 bits/sec, 11980 packets/sec
3976 packets input, 416284 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
14076914 packets output, 13792615126 bytes, 0 underruns
Output 0 broadcasts (0 IP multicasts)
0 output errors, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
BPE_LAB_Cisco9200_0001#sh platform hardware fed switch active qos queue stats interface g1/0/2
----------------------------------------------------------------------------------------------
AQM Global counters
GlobalHardLimit: 3595 | GlobalHardBufCount: 0
GlobalSoftLimit: 9717 | GlobalSoftBufCount: 5855
----------------------------------------------------------------------------------------------
Asic:0 Core:0 Port:5 Hardware Enqueue Counters
----------------------------------------------------------------------------------------------
Q Buffers Enqueue-TH0 Enqueue-TH1 Enqueue-TH2 Qpolicer
(Count) (Bytes) (Bytes) (Bytes) (Bytes)
-- ------- -------------------- -------------------- -------------------- --------------------
0 0 0 96414 6662947 0
1 5855 0 0 64452927900 0
2 0 0 0 0 0
3 0 0 0 0 0
4 0 0 0 0 0
5 0 0 0 0 0
6 0 0 0 0 0
7 0 0 0 0 0
Asic:0 Core:0 Port:5 Hardware Drop Counters
--------------------------------------------------------------------------------------------------------------------------------
Q Drop-TH0 Drop-TH1 Drop-TH2 SBufDrop QebDrop QpolicerDrop
(Bytes) (Bytes) (Bytes) (Bytes) (Bytes) (Bytes)
-- -------------------- -------------------- -------------------- -------------------- -------------------- --------------------
0 0 0 0 0 0 0
1 0 0 47052720748 0 0 0
2 0 0 0 0 0 0
3 0 0 0 0 0 0
4 0 0 0 0 0 0
5 0 0 0 0 0 0
6 0 0 0 0 0 0
7 0 0 0 0 0 0
BPE_LAB_Cisco9200_0001#
