DC Distributor FroDo – Upgrades November 2019

Introduction      

We would like to announce the upgrade of the version of Comware running on our DC Distributor FroDos. This follows on from the recent upgrade of all customer FroDos during September and the start of this month.

This blog entry aims to answer the majority of questions that this work will raise. Please, however, feel free to contact the Networks team with any further questions at networks@it.ox.ac.uk

Why?

As part of ongoing maintenance it is essential that we keep our FroDo software up to date. The new version of software being deployed addresses a number of vulnerabilities and bugs. This takes us from R2612H01 to R2702 for these devices.

Impact

All DC Distributor FroDos are HPE 5940’s running in an IRF pair. As a result, we can use the HPE In Service Software Update (ISSU) feature which aims to minimise impact to traffic passing through the FroDo pair as it is upgraded.

The DC distributors do run a variety of customer annexe connections into the DC sites Frodo and this information is listed within Huggin. Just enter the name or frodo number. Any customers who do not have an aggregated annexe connection across both devices will be affected as the single device they connect to reloads. The reload time for a HPE 5940 is ~10 minutes.

Finally, we have recently migrated several services from the old service spine onto pairs of DC distributors. With that in mind I have provided a list, in upgrade order, of the central services that are hosted on each device.

It is important to remember that we have resilience in the form of IRF as well as the service being provided from two distinct dcdist FroDos. However, as with all upgrades, there is an element of risk and therefore the services themselves should be considered at risk during the upgrade window.

Upgrade Schedule

Tuesday 5th November

dcdist-usdc-1 (frodo-120809) (07:00)

ESTSN(ASA)
COWLS WLC USDC

Thursday 7th November

 dcdist-edc (frodo-030403) (07:00)

OXIDE-ESTATES-FACILITIES#2
OXIDE-ESTATES-SECURE#2
OXIDE-CHORUS#2

dcdist-roq (frodo-050911) (07:30) This device rescheduled for 22/11 07:00

CENTRAL-VPN#1
EDUROAM#1
COWLS WLC ROQ
SMALL OFFICES (MNS)
SMALL ESTATES(MNS)
SMALL LIBRARIES

Tuesday 12th November

dcdist-beach(frodo-120601) (07:00)

OXIDE CHORUS#1
OXIDE ESTATES-FACILITIES#1
OXIDE ESTATES-SECURE#2

dcdist-orc(frodo-100912) (07:30)

OWL#1
COWLS WLC ORC

Thursday 14th November

 dcdist-ind(frodo-030812) (07:00)

EDUROAM#2
CENTRAL-VPN#2
COWLS WLC IND

dcdist-mus(frodo-120610) (07:30)

OWL#2
COWLS WLC MUS

Tues 19th November

dcdist-beg(frodo-050909) (07:00)
dcdist-osney(frodo-030811) (07:30)

 

Thursday 22nd November

dcdist-roq (frodo-050911) (07:00)

CENTRAL-VPN#1
EDUROAM#1
COWLS WLC ROQ
SMALL OFFICES (MNS)
SMALL ESTATES(MNS)
SMALL LIBRARIES

Posted in General Maintenance, Odin | Leave a comment

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