11-11-2005 12:48 AM - edited 03-03-2019 10:56 AM
Hello.
I'm trying the conf found in the following URL to work:
For testing, I send a huge message via SMTP. This traffic has 128k reserved in the policy map.
Meanwhile, I send a huge message via webmail over the DSL so the uplink gets full. I don't reserve banwidth for that. When this starts, the other traffic slow down the speed to 40kbps aprox (so reservation does not work) and I see how the ATM interface reports output drops.
When I query the state of the policy map applied to the interface (show policy-map interface dialer 1) I see matches over the class map but no matches over the queue (pkts matched/bytes matched).
If I query the Dialer queue (show queue dialer 1) I see it's always empty but if I query the ATM queue I can see the wfq queue with both conversations.
If you try similar confs you'll see the same.
This router is connected to a ISP so can't negotiate the LFI feature, but I think this would be independent of the CBWFQ.
I've noticed too that the queueing mechanism in the Dialer interface (weighted fair) is not cloned to the Virtual-Access. I've tried to upgrade the IOS too to the latest 11.3T version but still not working.
Instead, I've tried it with a Virtual Template and it works, but I have problems with the negotiated IP address and the NAT feature.
I've found the following technote, where you can read: ...the DSL interfaces do not support service policies that apply fancy queueing since these interfaces do not implement the "back-pressure algorithm" necessary to signal that excess packets should be queued by the Layer 3 (L3) queueing system.
http://www.cisco.com/en/US/customer/tech/tk543/tk545/technologies_tech_note09186a00800b2d29.shtml
I've found some other posts with similar problems.
Could be probably a bug or an error configuration or a limited feature?
Many thanks.
11-17-2005 06:57 AM
Check the IOS version your using and I guess 12.2(8)YM should support this.
11-18-2005 05:03 AM
I'll test it.
Thanks.
11-18-2005 07:15 AM
Sorry but I havent found the IOS you mention in IOS downloads.
Also, all 12.2 IOS releases for 837 are deferred.
Regards.
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