[outages] Comcast IP routing issues, Western Chicago Suburbs (fed from West Chicago)

[Jeff Martinez]

Yesterday had issues with my customers in Illinois getting to our 
datacenter... this was about 9AM ish CT, starting working again around 11 AM 
ish.




Jeff Martinez
1-800-617-7810
630-963-2400
FAX:800-646-5308
jeff at bbdp.com
www.bbdp.com

-----Original Message-----
From: Outages <outages-bounces at outages.org> On Behalf Of Nate Burke via 
Outages
Sent: Thursday, December 5, 2024 4:09 PM
To: outages at outages.org
Subject: [outages] Comcast IP routing issues, Western Chicago Suburbs (fed 
from West Chicago)

Has anyone seen issues in the western Chicago suburbs on Comcast today? At 
~1:50am it looks like there was a brief outage, then a route change within the 
comcast network between 350 cermak and West Chicago (according to PTR data), 
and all day I've been fielding calls from our VoIP Customers who have comcast 
business/Home circuits that all seem to go through West Chicago. Some Comcast 
IP's I can ping from my HE/Zayo circuits, others I cannot, yet some TCP 
Applications appear to still work to those IP's.  Since the route change this 
morning, UDP Traffic has been randomly getting through.  ICMP Between Comcast 
IP's within west Chicago appears normal.  The Customers I've talked to also 
report sporadic outages/slowness to cloud services.  Attempted to contact 
Cocmast through the normal support channels, but since things are 'mostly' 
working, haven't gotten anywhere with Tier1 support yet.

Happy to provide trace routes as needed, but since it's happening across 
multiple circuits/IP Blocks didn't want to include random data if it's a known 
larger issue.  We did have High winds last night, so it feels like a fiber is 
down somewhere, and routing is wonky now.

Nate Burke

Blast Communications


_______________________________________________
Outages mailing list
Outages at outages.org
https://puck.nether.net/mailman/listinfo/outages

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 5918 bytes
Desc: not available
URL: <https://puck.nether.net/pipermail/outages/attachments/20241206/9b897e9a/attachment.p7s>