nanog mailing list archives
Re: Byte Counters on Ciscos
From: Dean Anderson <dean () av8 com>
Date: Mon, 25 Jan 1999 14:11:51 -0500
Cisco stores them as 32 bits, but SNMP also retrieves them as 32 bits. HP has a proprietary MIB & impl. for its Lanprobes & RMON s/w for HP workstations, which is 64 bits wide. These are the only devices I know of that store more than 32 bits, and have accurate counts of bytes over a long period of time. So on ciscos, you should clear counters before they can roll over. You should really have a raffle to guess the uptime on your router. ;-) --Dean At 10:46 AM 1/25/1999 -0500, alex () nac net wrote:
I am working on some byte counting stuff, and have a odd question. I noticed on my of my routers: 2403558863 packets input, 2476827328 bytes thats: 2,403,558,863 packets input, 2,476,827,328 bytes which when divided out, comes to 1.03 bytes per packet, which without saying is obviously in error. So, when does a Cisco counter 'flip' ? How many bits is it? -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Atheism is a non-prophet organization. I route, therefore I am. Alex Rubenstein, alex () nac net, KC2BUO, ISP/C Charter Member Father of the Network and Head Bottle-Washer Net Access Corporation, 9 Mt. Pleasant Tpk., Denville, NJ 07834 Don't choose a spineless ISP; we have more backbone! http://www.nac.net -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Plain Aviation, Inc dean () av8 com LAN/WAN/UNIX/NT/TCPIP http://www.av8.com ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Current thread:
- Byte Counters on Ciscos alex (Jan 25)
- Re: Byte Counters on Ciscos Randy Bush (Jan 25)
- Re: Byte Counters on Ciscos Ted Frohling (Jan 25)
- <Possible follow-ups>
- Re: Byte Counters on Ciscos Dean Anderson (Jan 25)
- Re: Byte Counters on Ciscos Phillip Vandry (Jan 27)
- RE: Byte Counters on Ciscos Martin, Christian (Jan 25)
- Re: Byte Counters on Ciscos Randy Bush (Jan 25)