Thank you for the prompt response. Why do you believe this is a hash settings issue? The egress load seems evenly distributed between the two active interfaces. When the ae0 interface plateaus at 1Gbps , both physical interfaces plateau at ~500Mbps. I've also read that layer-4 hashing can be CPU/memory intensive. Would just layer-3 be sufficient?
The other end is a Cisco, but since this issue is with egress traffic I don't really think that is important, unless I do change the load-balancing settings. Jonathan > CC: [email protected] > From: [email protected] > To: [email protected] > Subject: Re: [j-nsp] Juniper M20 LACP oddness. > Date: Fri, 24 Apr 2009 15:28:13 -0500 > > Try tweaking your hash settings: > > ad...@core2-chi# show forwarding-options hash-key | display detail > ## > ## hash-key: Select data used in the hash key > ## > ## > ## family: Protocol family > ## > ## > ## inet: IPv4 protocol family > ## alias: inet4 > ## > family inet { > ## > ## layer-3: Include Layer 3 (IP) data in the hash key > ## > layer-3 { > ## > ## Include IP destination address in the hash key > ## > destination-address; > ## > ## Include IP protocol in the hash key > ## > protocol; > ## > ## Include IP source address in the hash key > ## > source-address; > } > } > > http://juniper.cluepon.net/index.php/Load_Balancing > > > > -- Kevin > > > On Apr 24, 2009, at 3:20 PM, Jonathan Call wrote: > > > > > Has anyone encountered an issue where an etherchannel interface > > appears to be only using a portion of its available bandwidth? > > > > I have a very straightforward LACP enabled etherchannel interface: > > > > chassis { > > aggregated-devices { > > ethernet { > > device-count 4; > > } > > } > > } > > > > ae0 { > > aggregated-ether-options { > > lacp { > > active; > > } > > } > > unit 0 { > > family inet { > > address x.x.x.x/30; > > } > > family inet6 { > > address x:x:x::x/126; > > } > > } > > } > > > > ge-0/0/0 { > > gigether-options { > > 802.3ad ae0; > > } > > } > > > > ge-1/0/0 { > > > > gigether-options { > > > > 802.3ad ae0; > > > > } > > > > } > > > > > > I have two other interfaces ge-2/0/0 and ge-3/0/0 that are also > > configured but are not connected yet. > > > > Everything checks out ok: > > > > router> show interfaces ae0 > > Physical interface: ae0, Enabled, Physical link is Up > > Interface index: 128, SNMP ifIndex: 35 > > Link-level type: Ethernet, MTU: 1514, Speed: 2000mbps, Loopback: > > Disabled, > > Source filtering: Disabled, Flow control: Disabled, Minimum links > > needed: 1, > > Minimum bandwidth needed: 0 > > .... > > > > router> show lacp interfaces ae0 > > ggregated interface: ae0 > > LACP state: Role Exp Def Dist Col Syn Aggr > > Timeout Activity > > ge-0/0/0 Actor No No Yes Yes Yes Yes > > Fast Active > > ge-0/0/0 Partner No No Yes Yes Yes Yes > > Slow Active > > ge-1/0/0 Actor No No Yes Yes Yes Yes > > Fast Active > > ge-1/0/0 Partner No No Yes Yes Yes Yes > > Slow Active > > ge-2/0/0 Actor No Yes No No No Yes > > Fast Active > > ge-2/0/0 Partner No Yes No No No Yes > > Fast Passive > > ge-3/0/0 Actor No Yes No No No Yes > > Fast Active > > ge-3/0/0 Partner No Yes No No No Yes > > Fast Passive > > LACP protocol: Receive State Transmit State Mux > > State > > ge-0/0/0 Current Slow periodic Collecting > > distributing > > ge-1/0/0 Current Slow periodic Collecting > > distributing > > ge-2/0/0 Port disabled No periodic > > Detached > > ge-3/0/0 Port disabled No periodic > > Detached > > > > When the network traffic for this ae0 interface reaches about 1Gbps > > we begin to experience packet loss and other issues indicative of > > link saturation. Our graphing also shows the link plateauing at the > > 1Gbps level as well. Everything appears to be configured and > > operating correctly but we do not appear to be able to cross the > > 1Gbps threshold. This is a Juniper M20 running JunOS 8.3R3.4 > > > > Jonathan > > > > _________________________________________________________________ > > Windows Live™ Hotmail®:…more than just e-mail. > > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_HM_more_042009 > > _______________________________________________ > > juniper-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/juniper-nsp > _________________________________________________________________ Windows Live™ SkyDrive™: Get 25 GB of free online storage. http://windowslive.com/online/skydrive?ocid=TXT_TAGLM_WL_skydrive_042009 _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
