[j-nsp] Half Duplex Routing Engine m40?
Dan Benson
dbenson at swingpad.com
Wed Feb 16 14:36:30 EST 2005
From what I know, there are two FXPs, one to the Craft interface on the
front of the unit, and the other connects to the SCB. On all of my
M40's, I have full to the craft and half to the SCB. Hope this helps.. //db
Paul Goyette wrote:
>The M40 internal PFE-to-RE link (fxp1) runs only in
>half-duplex mode.
>
>-----Original Message-----
>From: juniper-nsp-bounces at puck.nether.net
>[mailto:juniper-nsp-bounces at puck.nether.net]On Behalf Of Dennis Ponne
>Sent: Wednesday, February 16, 2005 11:15 AM
>To: juniper-nsp at puck.nether.net
>Cc: noc at netholding.nl
>Subject: [j-nsp] Half Duplex Routing Engine m40?
>
>
>Hi,
>
>I found something what I think is not correct.
>
>The routing-engine on our M20 box on FXP1 has a full-duplex link.
>
>dennis at m20.intxn.be.as24730.net> show interfaces fxp1
>Physical interface: fxp1, Enabled, Physical link is Up
> Interface index: 2, SNMP ifIndex: 2
> Type: Ethernet, Link-level type: Ethernet, MTU: 1514, Speed: 100mbps
> Device flags : Present Running
> Interface flags: SNMP-Traps
> Link type : Full-Duplex
> Link flags : 4
> Current address: 00:a0:a5:12:1c:1e, Hardware address: 00:a0:a5:12:1c:1e
> Last flapped : Never
> Input packets : 332905148
> Output packets: 994816558
>
>
>Now I check both our M40's and check this out:
>
>Physical interface: fxp1, Enabled, Physical link is Up
> Interface index: 2, SNMP ifIndex: 2
> Type: Ethernet, Link-level type: Ethernet, MTU: 1514, Speed: 100mbps
> Device flags : Present Running
> Interface flags: SNMP-Traps
> Link type : Half-Duplex
> Link flags : 4
> Current address: 00:a0:a5:12:2b:53, Hardware address: 00:a0:a5:12:2b:53
> Last flapped : Never
> Input packets : 1643478
> Output packets: 5153017
>
>
>What we have we do a total on this M40 box 2.9 - 3.1 gigabit/s of traffic
>outgoing and incomming 600 - 700 mbit/s on our transit/peering interfaces.
>
>We run 197 peers on this box and the avaible memory is 351MB, this box has
>768MB of ram inside and uses a RE-2.
>
>The total pps is:
>
>250.000kpps average, Load in day time 300.000kpps Load up to 320.000kpps.
>
>But the strange is that we have packet loss, it does not matter wich JunOS
>we use, the packet loss to the router is heavy, but 9 of 10 times after
>the router the ping is normal. But on the M20 this is not an issue.
>
>How can I force the FXP1 to be 100 FDX? Threw the software:
>
>edit interface fxp1
>set link-mode full-duplex
>
>Does not work.
>
>JUNOS Base OS Software Suite [7.0R2.7]
>
>Hardware inventory:
>Item Version Part number Serial number Description
>Chassis 53828 M40
>Backplane REV 02 710-001348 AL3546 M40 Backplane
>Power Supply A REV 04 740-000234 001516 AC Power Supply
>Power Supply B REV 04 740-000234 001598 AC Power Supply
>Maxicab REV 08 710-000229 AT3658 Host Maxi CAB
>Minicab REV 03 710-001739 AH8902 M40 Teknor Mini
>CAB
>Display REV 08 710-000150 AP2907 M40 Display Board
>Routing Engine REV 01 740-003239 9001009622 RE-2.0
>SCB REV 02 710-001838 AP9305 Internet
>Processor IIv1
>FPC 0 REV 01 710-001292 AN7304 FPC
> PIC 0 REV 03 750-002879 AN7060 1x G/E, 1000
>BASE-SX
> PIC 1 REV 03 750-002879 AN7060 1x G/E, 1000
>BASE-SX
> PIC 2 REV 03 750-002879 AN7060 1x G/E, 1000
>BASE-SX
> PIC 3 REV 03 750-002879 AN7060 1x G/E, 1000
>BASE-SX
>FPC 2 REV 03 710-003308 BC0734 E-FPC
> PIC 0 REV 01 750-001324 AC4850 1x G/E, 1000
>BASE-LX
>FPC 5 REV 01 710-001292 AF3547 FPC
> PIC 0 REV 03 750-002879 AP1259 1x G/E, 1000
>BASE-SX
> PIC 1 REV 03 750-002879 AP1259 1x G/E, 1000
>BASE-SX
> PIC 2 REV 03 750-002879 AP1259 1x G/E, 1000
>BASE-SX
> PIC 3 REV 03 750-002879 AP1259 1x G/E, 1000
>BASE-SX
>FPC 7 REV 01 710-001292 AJ0968 FPC
> PIC 0 REV 03 750-000603 AG7521 4x OC-3 SONET,
>SMIR
> PIC 2 REV 08 750-001072 AH1073 1x G/E, 1000
>BASE-SX
>
>dennis at m40.ams.gs> show system uptime
>Current time: 2005-02-16 20:14:55 CET
>System booted: 2005-01-26 23:09:08 CET (2w6d 21:05 ago)
>Protocols started: 2005-01-26 23:10:23 CET (2w6d 21:04 ago)
>Last configured: 2005-02-16 19:49:19 CET (00:25:36 ago) by dennis
>8:14PM CET up 20 days, 21:06, 1 user, load averages: 0.02, 0.14, 0.22
>
>The question is how can make sure that a router that is no heavy loaded
>towards it's routing engine can ping back in time? How do I set this
>interface to be full-duplex?
>
>Thanks in advance,
>
>Dennis Ponne
>
>_______________________________________________
>juniper-nsp mailing list juniper-nsp at puck.nether.net
>http://puck.nether.net/mailman/listinfo/juniper-nsp
>
>_______________________________________________
>juniper-nsp mailing list juniper-nsp at puck.nether.net
>http://puck.nether.net/mailman/listinfo/juniper-nsp
>
>
>
>
More information about the juniper-nsp
mailing list