[outages] CenturyLink peering issues?

Stephen Flynn sflynn at staff.atlantic.net
Sun Aug 30 07:25:32 EDT 2020


Confirmed Level3 carrier issue from the Orlando region --- possibly my other data centers as well (haven't checked them yet, been focusing on my ORL-FL outage).

Odd part --- I disconnected my Level3 circuit at the ORL-FL facility so that I could fully failover to my other carrier link.
Level3 is still advertising my routes, even though my link and BGP session is down.

er-02.orl-fl> show interfaces descriptions | match Level3 
xe-2/0/0        down  down LEVEL3 |


er-02.orl-fl> show bgp summary | match 3356 
67.30.142.81           3356          0          0       0       0       27:43 Active
2001:1900:2100::26ad        3356          0          0       0       0       27:43 Idle


BGP routing table entry for 209.208.0.0/17
Versions:
  Process           bRIB/RIB  SendTblVer
  Speaker           86180864    86180864
Last Modified: May 16 05:47:52.095 for 15w1d
Paths: (25 available, best #25)
  Advertised IPv4 Unicast paths to update-groups (with more than one peer):
    0.1 0.2 0.8 0.9 0.10 
  Path #1: Received by speaker 0
  Not advertised to any peer
  3356 6364
    129.250.8.174 (metric 9340) from 129.250.0.2 (129.250.0.2)
      Origin IGP, metric 4294967294, localpref 100, valid, confed-internal
      Received Path ID 0, Local Path ID 0, version 0
      Community: 2914:390 2914:1003 2914:2000 2914:3000 65504:3356
  Path #2: Received by speaker 0
  Not advertised to any peer
  3356 6364
    129.250.9.50 (metric 24142) from 129.250.0.6 (129.250.0.6)
      Origin IGP, metric 4294967294, localpref 100, valid, confed-internal
      Received Path ID 0, Local Path ID 0, version 0
      Community: 2914:390 2914:1214 2914:2213 2914:3200 65504:3356
  Path #3: Received by speaker 0
  Not advertised to any peer
  174 6364
    130.117.15.89 (metric 24174) from 129.250.0.13 (129.250.0.13)
      Origin IGP, metric 4294967294, localpref 100, valid, confed-internal
      Received Path ID 0, Local Path ID 0, version 0
      Community: 2914:390 2914:1204 2914:2205 2914:3200 65504:174
  Path #4: Received by speaker 0



Regards,

Stephen Flynn
Atlantic.Net
Direct: (321) 206-1390
sflynn at staff.atlantic.net
www.atlantic.net


-----Original Message-----
From: Outages <outages-bounces at outages.org> On Behalf Of randal k via Outages
Sent: Sunday, August 30, 2020 7:10 AM
To: outages at outages.org
Subject: [outages] CenturyLink peering issues?


CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.


We have been seeing serious issues with Level3/CenturyLink services over the past hour or so. Everything on-net seems OK, but transit traffic looks to have problems. Thoughts?
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