Hey We currently buy services from a major Australian Telecommunications provider. The services are an Ethernet over copper service which is then presented to us (a mini-ISP) as an ATM PVC. The service is marketed as a Bridged service (Pure Layer 2 end to end) I am having some real strange issues here. I can get end to end connectivity working just fine. I have done several Tests. The first test was to configure an ATM Sub Interace in bridged routing mode where I simply apply some IP addressing on in natively and have the client on the other end plug a LAPTOP into the their end and assign a correspondeing address on their end. Here is the config of our end: CISCO 7200 Series Router: Cisco IOS Software, 7200 Software (C7200-ADVIPSERVICESK9-M), Version 12.2(33)SRE1 ! interface ATM2/0.49 point-to-point description Customer-X-Link ip address 172.16.0.1 255.255.255.0 atm route-bridged ip no atm enable-ilmi-trap pvc 0/49 encapsulation aal5snap ! As you can see the VPI/VCI is 0/49 and when configured like this, the service performs very well. However being an ISP ourselves we do not want to be configuring this service like this. We want to Transport this service as a Layer 2 service. After trying to use l2transport by configuring AToM and Layer 2 Local switching with NO luck, I decided the best way would be to enable PPPoE on the interface and either terminate the service on our router or tunnel switch it elsewhere. Here is how I have configured it. (it works) however I am having some kind of throughput issue when the customer is uploading (ie sending data towards my router). ! bba-group pppoe BDAS virtual-template 66 ! interface Virtual-Template66 mtu 1492 ip unnumbered Loopback10 no logging event link-status peer default ip address pool melbourne ppp authentication chap pap radius-group ppp authorization radius-group ppp accounting radius-group ! ! ! interface ATM2/0.2 multipoint description Upstream-Provider bandwidth 150000 no atm enable-ilmi-trap range BDASLite-EOC pvc 0/33 0/60 dbs enable create on-demand protocol pppoe group BDAS ! This all works however, for some reason I am seeing a throughput issue and I cannot do anything to make it better. The only way so far I can get good results is configuring the atm interface with the Ip addressing. My question is: Am I missing something in my config that is causing me this grief. What can I try?
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