I had the same problem with GTE DSL... which terminates on frame-relay and
uses Fujitsu DSL gear. Adjust your MTU to 2048 and this might fix the
problem. I think it is an issue with DSL, and not the frame provisioning,
but I have not come across the real reason why you need the larger MTU size.
Scott
-- Scott Keoseyan (sakeoseyan@ixc-comm.com) Senior Network Consultant IXC Communications, Inc. 1881 Campus Commons, Suite 210 Reston, VA 20191 (703)391-1831 - (FAX)476-5103 http://www.cciepreplab.com-----Original Message----- From: Jay Stewart [mailto:cosmo@olywa.net] Sent: Tuesday, October 19, 1999 6:41 PM To: cisco-nsp@puck.nether.net Subject: [nsp] MC3810 DSL Bridging Problem (IRB)
I'm having problems getting IRB to work correctly with COVAD DSL connected PVCs over Frame-Relay. (Configs below)
Everything seems to work fine on these connections - I can ping the customer, simple stuff works, and all downloads in the direction of the customer work, but when they try to FTP stuff upstream, or send an encoded e-mail attachment, their transfers putter out during upload. This is only on the *bridged* COVAD PVC's, not the routed ones (of which we have a dozen or so on the same shared T1).
I'm running 12.0(6) in a MC3810 with 32 MB of RAM. The customers are using FlowPoint 2200 SDSL router/bridge at varying speeds in bridged ADSL mode. Line problems have been eliminated as a problem. Is there a switch I'm not flipping, or something I'm forgetting, or is there an issue with using this type of configuration in a MC3810? I get this problem whether or not I'm using separate sub-interfaces with separate BVI's, or whether I share.
Jay Stewart Vice President Olympia Networking Services - "The Northwest's Premier ISP" http://www.olywa.net
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bridge irb
interface Serial1 description covad DSL Access T1 no ip address no ip directed-broadcast encapsulation frame-relay no ip route-cache no ip mroute-cache no keepalive no fair-queue
interface Serial1.999 multipoint description COVAD bridged Interface no ip directed-broadcast no ip route-cache frame-relay map bridge 44 broadcast IETF frame-relay map bridge 38 broadcast IETF bridge-group 1 bridge-group 1 spanning-disabled
interface BVI1 description Shared Bridged Interface for COVAD DSL. ip address 216.173.209.126 255.255.255.192 no ip directed-broadcast no ip proxy-arp arp timeout 3600 end
bridge 1 protocol ieee bridge 1 route ip
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