Isn't weighted fair queueing generally a bad idea on a LAN interface?
Chuck Church Lead Design Engineer CCIE #8776, MCNE, MCSE Netco Government Services - Design & Implementation Team 1210 N. Parker Rd. Greenville, SC 29609 Home office: 864-335-9473 Cell: 703-819-3495 [EMAIL PROTECTED] PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gyorfy, Shawn Sent: Tuesday, October 26, 2004 10:49 AM To: '[EMAIL PROTECTED]' Cc: [EMAIL PROTECTED] Subject: RE: [Insight?] OutPut Drops Cisco 7206VXR Yeah - we have traffic shaping: policy-map Outbound-Transmission-To-Core (We have 10) class Expedited-Forwarding-To-Core priority percent 50 class Hanover_13364_14025_37272-TS-To-Core shape average 1536000 192000 15000 class Queller_3266_3268_30989-TS-To-Core shape average 700000 87500 15000 . . . (10) FastEthernet0/0 is up, line protocol is up Hardware is DEC21140A, address is 0001.636e.1c00 (bia 0001.636e.1c00) Description: Connected to Extreme Summit48 Internet address is MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 12/255, rxload 3/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:21, output 00:00:00, output hang never Last clearing of "show interface" counters 00:37:12 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 5397 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/82/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 25000 kilobits/sec 5 minute input rate 1505000 bits/sec, 979 packets/sec 5 minute output rate 5084000 bits/sec, 1590 packets/sec 2028319 packets input, 434456929 bytes Received 3 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 3453733 packets output, 1359654191 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 output buffer failures, 0 output buffers swapped out Serial2/0 is up, line protocol is up Hardware is M1T-T3+ pa Description: ny-0200 V#51HFGL605916 (DS3 to 39 Broadway POP) Internet address is MTU 4470 bytes, BW 44210 Kbit, DLY 200 usec, reliability 255/255, txload 8/255, rxload 29/255 Encapsulation PPP, LCP Open Open: CDPCP, IPCP, crc 16, loopback not set Keepalive set (10 sec) Restart-Delay is 0 secs Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 00:37:49 Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/10/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 11052 kilobits/sec 5 minute input rate 5029000 bits/sec, 1584 packets/sec 5 minute output rate 1437000 bits/sec, 966 packets/sec 3460149 packets input, 1351120603 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 2005303 packets output, 418156501 bytes, 0 underruns 0 output errors, 0 applique, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions rxLOS inactive, rxLOF inactive, rxAIS inactive txAIS inactive, rxRAI inactive, txRAI inactive -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 26, 2004 10:55 AM To: Gyorfy, Shawn Subject: Re: [Insight?] OutPut Drops Cisco 7206VXR Do you have any rate limiting on the Ethernet interface? The bus error.. I would say let cisco just replace your gear... that dosen't sound good. How is the bandwidth usage soo different? That dosen't sound right.... -Justin On Tue, 26 Oct 2004, Gyorfy, Shawn wrote: > > What's up all, > > I have a question, maybe some have experienced this before- let me paint the > picture for you first - We are running VoIP- customer's are experiencing > static. > > I have a DS3 going for a Cisco 10k router to a Cisco 7206VXR M2T-T3+ pa > Interface. As of right now, the current usage is about 5.5Mbps with an > input rate of about 1425pps and output rate of 756. > > The Fast Ethernet is connected to an Extreme Switch. The FastE's usage > right now is about 20Mbps with an input rate of 868pps and an output of > 1541pps. > > On the FastE - we are seeing Output drops. They were at a constant > interval, when we were running IOS c7200-p-mz.123-9a. As per cisco, we > upgraded the IOS to c7200-p-mz.123-10 because of a possible buffer leak. > Rather than just upgrading the IOS on the current box, we swapped it out to > a new box and still recv output drops and Now the puppy decides to reboot > every 15 minutes returning a, "System returned to ROM by bus error at PC > 0x60132C44, address 0xE16E2CD at 13:38:47 UTC Tue Oct 26 2004" > > Questions: (a) What would be causing the output errors - can't the > processor and memory handle that? > (b) what is that bus error? > > > Thanks all, > > shawn. > > > > > >