TCW Aug 9 -- complete removal of graceful-restart

RESOLVED FIXED

Status

Infrastructure & Operations
NetOps
RESOLVED FIXED
3 years ago
2 years ago

People

(Reporter: dcurado, Assigned: dcurado)

Tracking

Details

(Assignee)

Description

3 years ago
In our last maint work we learned that removing Graceful Restart (GR) causes
BGP to restart.  We removed GR from all the non-core network devices, but
decided to delay removing it from border routers holding full routes
and core switches until the TCW, as it will be a bit disruptive when
all the BGP sessions restart on any one of these devices.

Here's the list of devices from which we will delete GR:

fw1.corp.console.scl3.mozilla.net
fw1.corp.phx1.mozilla.net
fw1.phx1.mozilla.net
fw1.releng.scl3.mozilla.net
fw1.scl3.mozilla.net
fw1.svc.phx1.mozilla.net
border1.console.pao1.mozilla.net
border1.console.scl3.mozilla.net
border1.console.sjc2.mozilla.net
border1.phx1.mozilla.net
border2.console.scl3.mozilla.net
border2.phx1.mozilla.net
core1.corp.console.scl3.mozilla.net
core1.corp.phx1.mozilla.net
core1.svc.phx1.mozilla.net
(Assignee)

Updated

3 years ago
Assignee: network-operations → dcurado
Flags: cab-review?
(Assignee)

Comment 1

3 years ago
Time required: 45 minutes
Impact: multiple brief disruptions as each device listed will clear all bgp sessions
Status: NEW → ASSIGNED
Flags: cab-review? → cab-review+

Updated

3 years ago
Blocks: 1048340
(Assignee)

Comment 2

3 years ago
work completed.
We actually left GR configured on border1.sjc2, to be deleted another day, as the convergence
time for this change is a killer.
Status: ASSIGNED → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → FIXED

Updated

2 years ago
Cab Review: --- → approved
Flags: cab-review+
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