Interesting; instability due to reaching this table limit? Good info!
On Thu, Aug 8, 2013 at 10:39 AM, Tony Tauber <[email protected]> wrote: > It's a fair question and had nothing to do with the other network (TW > Telecom, in this case, not TIme Warner Cable). > Sorry for not filling in details sooner. > > We recently needed to adjust the scale profile on some of our Cisco ASR9k > trident chip (80gig) Line Cards as we reached . The default profile only > supports up to 512k routes and will notify that CEF has run out of > DATA_TYPE_TABLE_SET space as a result. The profile change required (profile > 13) requires a reload of the chassis. please be advised. You might want to > review with your local support team. > > The symptom involved BGP neighbor instability and unreachability of some > destinations. > Shutting down that particular BGP session was a temporary work-around > until the adjustment could be made during a demand maintenance window to > minimize disruption. > > Thanks, > Tony > > > On Wed, Aug 7, 2013 at 5:31 PM, Phil Fagan <[email protected]> wrote: > >> BGP Noob question here; but wouldn't Time Warner not recieve a prefix if >> it >> wasn't reachable? Is this an artifact? >> >> >> On Mon, Aug 5, 2013 at 11:32 AM, Chad Reid <[email protected]> >> wrote: >> >> > Thanks for the assistance everyone. This issue was resolved by shutting >> > down a BGP peering session between Time Warner and Comcast. --Chad >> > >> > Chad M. Reid, Network Administrator II >> > Work Hours: Sun. - Tue. 6AM-6PM and Wed. 6AM-3PM (MST -7) >> > Apollo Group | IT Services │ IT Operations Center (ITOC) >> > 4025 S. Riverpoint Parkway │ MS: AA-M002 │ Phoenix, AZ 85040 >> > phone: 602.557.6746 │ fax: 602.557.6606 │ email: >> [email protected] >> > >> > >> > -----Original Message----- >> > From: Chad Reid >> > Sent: Sunday, August 04, 2013 7:41 AM >> > To: '[email protected]' >> > Subject: 204.17.16.0/20 Unreachable via Comcast ASN 7992; Looking for >> > Help or Contacts >> > >> > Hello NANOG, >> > >> > A few hundred of our users that use Comcast in the South East United >> > States (other regions aren't affected) are unable to access our >> websites in >> > the IP block 204.17.16.0/20. Based upon testing with the users, they're >> > getting a destination unreachable from a Comcast backbone router in ASN >> > 7922: >> > be-16-pe03.56marietta.ga.ibone.comcast.net [68.86.83.134] reports: >> > Destination net unreachable. >> > >> > We're not a customer of Comcast, nor are any of our ISPs. Because of >> this, >> > we can't find anyone at Comcast to look at this issue nor do we have >> good >> > contact info to even reach someone. Our users in the South East can open >> > tickets with Comcast technical support, but you can imagine how >> successful >> > they are trying to explain this to frontline support and getting >> frontline >> > support to understand. >> > >> > Is anyone from Comcast on the list that can assist or know of a contact? >> > >> > >> > Chad M. Reid, Network Administrator II >> > Work Hours: Sun. - Tue. 6AM-6PM and Wed. 6AM-3PM (MST -7) Apollo Group >> | >> > IT Services │ IT Operations Center (ITOC) >> > 4025 S. Riverpoint Parkway │ MS: AA-M002 │ Phoenix, AZ 85040 >> > phone: 602.557.6746 │ fax: 602.557.6606 │ email: >> [email protected] >> > >> > >> > >> > This message is private and confidential. If you have received it in >> > error, please notify the sender and remove it from your system. >> > >> > >> > >> > >> >> >> -- >> Phil Fagan >> Denver, CO >> 970-480-7618 >> > > -- Phil Fagan Denver, CO 970-480-7618
