The cards are SFM-capable 48 port 10/100/1000mb we connect 10 connections from each router to the ASN , each 5 are grouped together , 5 for VLAN that handle RAS to ASN communication and the other 5 to handle ASN to Core communication
> Date: Tue, 4 May 2010 23:50:31 +0300 > Subject: Re: [c-nsp] FW: Overruns > From: [email protected] > To: [email protected] > CC: [email protected] > > hi mohammad, > > what kind of linecards are you using? what capacity? how many links > per ether-channel? > > we had similar problems with overruns at ingress because of egress > congestion. there are different workarounds for each setup. all > problems are related to buffers and fabric connections though. > > regards, > manu > > > 2010/5/4 Mohammad Khalil <[email protected]>: > > > > hi all > > > > i posted this issue earlier but didnt get a solution > > anyway the MTU settings from both side are the same 1500 bytes > > i dont think that the MTU modification from Cisco side as its related to > > the number of packets sent from the ASN side and received by the Cisco side > > i was viewing the buffers on the Cisco side and found below > > Public buffer pools: > > > > Huge buffers, 18024 bytes (total 2, permanent 2, peak 11 @ 5w5d): > > 2 in free list (0 min, 4 max allowed) > > 10062 hits, 182 misses, 364 trims, 364 created > > 0 failures (0 no memory) > > > > do the misses number indicate anything ?? > > does the buffer tuning will solve the issue ? > > even the IOS upgrade didn't solve the issue > > > > Thanks > > > > From: [email protected] > > To: [email protected] > > Subject: Overruns > > Date: Tue, 6 Apr 2010 11:44:46 +0300 > > > > > > > > > > > > > > > > > > hi all > > > > i have 2 cisco 7606 routers connected to ASN GW for wimax traffic > > we had a problem with overruns on the port channels > > we connected 5 cables from the ASN to both routers and configured port > > channels for VLAN and the same setup for another vlan > > one vlan is for communcations with RASs and one to transport the traffic > > for into the core cloud > > anyway we upgraded the IOS version on the routers thinking thats might > > solve the issue but still > > please find below > > > > CR1.KJ-Building#sh int po10 | inc over > > 1 input errors, 1 CRC, 0 frame, 72395 overrun, 0 ignored > > CR1.KJ-Building#sh int po20 | inc over > > 6 input errors, 2 CRC, 0 frame, 734930 overrun, 0 ignored > > > > CR1.KJ-Building#sh run int po10 > > Building configuration... > > > > Current configuration : 259 bytes > > ! > > interface Port-channel10 > > description CORE_VLAN to ASN Gateway > > switchport > > switchport access vlan 10 > > switchport trunk encapsulation dot1q > > switchport mode access > > load-interval 30 > > speed 1000 > > duplex full > > flowcontrol receive on > > flowcontrol send on > > end > > > > CR1.KJ-Building#sh run int po20 > > Building configuration... > > > > Current configuration : 258 bytes > > ! > > interface Port-channel20 > > description RAS-VLAN to ASN Gateway > > switchport > > switchport access vlan 20 > > switchport trunk encapsulation dot1q > > switchport mode access > > load-interval 30 > > speed 1000 > > duplex full > > flowcontrol receive on > > flowcontrol send on > > end > > > > CR2.KJ-Building#sh int po10 | inc over > > 0 input errors, 0 CRC, 0 frame, 17889 overrun, 0 ignored > > CR2.KJ-Building#sh int po20 | inc over > > 0 input errors, 0 CRC, 0 frame, 826604 overrun, 0 ignored > > > > CR2.KJ-Building#sh run int po10 > > Building configuration... > > > > Current configuration : 259 bytes > > ! > > interface Port-channel10 > > description CORE_VLAN to ASN Gateway > > switchport > > switchport access vlan 10 > > switchport trunk encapsulation dot1q > > switchport mode access > > load-interval 30 > > speed 1000 > > duplex full > > flowcontrol receive on > > flowcontrol send on > > end > > > > CR2.KJ-Building#sh run int po20 > > Building configuration... > > > > Current configuration : 258 bytes > > ! > > interface Port-channel20 > > description RAS-VLAN to ASN Gateway > > switchport > > switchport access vlan 20 > > switchport trunk encapsulation dot1q > > switchport mode access > > load-interval 30 > > speed 1000 > > duplex full > > flowcontrol receive on > > flowcontrol send on > > end > > > > any advice in regards > > thanks > > > > Hotmail: Powerful Free email with security by Microsoft. Get it now. > > _________________________________________________________________ > > Hotmail: Trusted email with Microsoft’s powerful SPAM protection. > > https://signup.live.com/signup.aspx?id=60969 > > _______________________________________________ > > cisco-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ _________________________________________________________________ Hotmail: Free, trusted and rich email service. https://signup.live.com/signup.aspx?id=60969 _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
