btw 2012 network changes – 3 month rolling plan
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The information contained in this Presentation is confidential information as per your terms and conditions with British Telecommunications plc (BT).
Please treat it accordingly and do not forward, republish or permit unauthorized access.
BT reserves the right to make changes to the information in this Presentation at any time without further notice.
BTW Planned Engineering Works 90 day overviewMarch 2013 to June 2013These dates are indicative dates only and not to be used for any forecasting purposes as they are all subject to change. Please ensure that you wait for formal notifications from IRAMS.
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BTW 2012 Network Changes – 3 month rolling plan
• Whilst BTW has continually worked to enhance its network, we are currently undergoing an exceptional level of change driven by four main drivers:-
– Stability – to improve the reliability of the network, BTW is targeting certain network elements with hardware and software improvements.
– Capacity – the need for additional capacity is driven by an increase in the number of broadband users on the 21C network (through migration from 20C and growth) and also by the ever-increasing bandwidth demands of those users.
– Resilience –to improve the resilience of the network , BTW is actively removing single points of failure from the network – New Functionality – to meet the needs of the market BTW needs to enhance its network to deliver the services its
customers require.
• This presentation outlines the key upgrade programmes, their drivers, customer impact and the number of upgrades per programme per week.
• BTW is keen to deliver all the required improvements as quickly as possible whilst actively managing the risk to customers. For this reason a range of run-rates against each programme has been outlined. The actual run-rates achieved will be determined by this ongoing live analysis of risk.
• Customer outage times for the PEWs start between 00:01 and 02:00 with the aim of completing customer impacting work by 04:00. This allows 2 hours for roll-back should the PEW be unsuccessful.
• Business as usual capacity upgrades and upgrades to resilient structures have not been listed here.
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Customer Service / BTID Network Change - Executive Summary
• As a pre-requisite of a transmission migration to SDH platform the LPA’s in the 20c platform require a software upgrade.
• Due to resilience design upgrade is non-impacting to EU. • However each LPA pair supports large numbers of EU. Failure Assessment : Low risk,
high impact.• Deployment is due to commence on 29/1/13 and complete by first week of April and has
TSO senior management sign off.• Reading has completed this week.• Next site is Sheffield on 12th and 14th March.• Edinburgh, Ealing, Birmingham, Manchester, Milton Keynes and Reading are complete.
• PBR enhancement has completed FOA.• Colindale and Southbank are complete.• Next is Slough on 19th March.
20c LPA Upgrades
PBR Changes for BTR
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Customer Service / BTID Network Change - Executive Summary
Deployment Priorities Feb – Apr 2013
Prog
No:
Upgrade Key Drivers Total Upgrades
Average EU Impact per upgrade
Affected Products
Average EU outage (Mins)
Upgrades per week
Target Months Targat End
Feb
Mar
Apr
May
LAG Deployment Resilience, scaling, stability. IEA-P, EEA-P, P-P, MSPE-P
TBC 0 None 0 4 Ongoing
500G IEA chassis upgrade
Scaling 4 port 10G line-card
TBC TBC TBC TBC TBC TBA
2nd vendor P card Upgrade
Scaling 11 0 None None 2 TBA
MSE Migrations Scaling, Functionality
200k EU 1500 - 18000 WBC / WBMC 5 6000 - 72000
Ongoing
20c 2nd vendor BRAS Upgrade
Vendor Support,
TBC 7000 20c BB 20 5 TBA
21c EES, EEA, IEA, MSE Upgrade
Vendor support, Functionality
Approx 2500. 6000 HE, WBMC, WBC
20 75 Dec 13
39
40
41
42
44
45
5
Ongoing 21C UpgradesPro
g No:
Upgrade Key Drivers Upgrades Complete / Total
EUs per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per week
Progress Planned
EndFeb
Mar
Apr
May
SVLAN moves
Capacity,Stability
Ongoing Av 800Min 0
Max 1000
9 WBC 35 Up to 75Ongoing
EEA – EES Backhaul Uplift
Capacity 1052/1060 Non Customer impacting
40 None 0 5Mar 13
CRS SMU Upgrades
Stability 33/52 Non Customer impacting
1 None 0 16 Mar 13
HT-BEA IOS-XR Upgrade
Functionality 4/6 Average 200k
1 WBC / WCC
15 mins 1 Mar 13
6
SVLAN moves - these moves offload SVLAN’s (bundles of Broadband traffic) from one BRAS to another. This is carried out to alleviate capacity issues mplet
24 EEA – EES 7750 Lag Migration - This change provides increased scalability .
31 Software upgrade to increase platform stability.
35 Software upgrade to support BTR 40G Product requirements
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Ongoing 21C Upgrades Cont’dProg No:
Upgrade Key Drivers Upgrades Complete / Total
EUs per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per week
Progress Planne
d EndFe
bMar
Apr
May
BRAS 11.1.2.5 P8 Upgrade
Functionality (IPv6), stability.
27/257 BB EU’s per BRAS
Av 35000Max 45000
6 WBC / WBMC
45 Up to 24
Jun-13
High ThroughputBEA-VS
Capacity 7/10 Av 120K 1 WBC / WCC
45 mins 1 Jun-13
2nd vendor MSPE Software Upgrade
Functionality (Lag Support), stability.
2/80 None 1 None None 4 May-13
SVLAN moves - these moves offload SVLAN’s (bundles of Broadband traffic) from one BRAS to another. This is carried out to alleviate capacity issues mplet37
22
38
HT-BEA- Capacity requirement for bigger switch. 13 slot device replacing 9 slot device
Capacity – Software upgrade to replace software which is going out of vendor support.
Microsoft Excel Worksheet
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Ongoing 20C Upgrades Cont’d
Prog No:
Upgrade Key Drivers Upgrades Complete / Total
EUs per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per week
Progress Planne
d EndD
ecJan
Feb
Mar
10k BRAS SB11
Stability 93/122 Av 11000Min 3000
Max 18000
6 WBC 35 Up to 18
Feb 13
36
Microsoft Excel Worksheet
8
Completed 20C Upgrades
1
14
2
9
Completed 21C Upgrades
Progr No:
Upgrade Key Drivers
Upgrades Complete / Total
BB EUs and/or Ethernet Circuits per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per week
Date Ende
d
Copper MSAN Upgrade
Functionality
5594/5594 Non-Customer Impacting
Up to 120
None 0 Up to 480 Dec 11
EAD Chassis Code Upgrade
Stability 6950/6950 Up to 15 Ethernet Circuits
Up to 200
Ethernet,Mobile
Ethernet
<1 Up to 1000
Feb 12
21C BRAS Core Migration
Capacity 151/151 Non Customer Impacting
Up to 12 WBC 0 16-30 Feb 12
BEA VS Card Upgrade
Capacity 20/20 – Complete
Non-Customer Impacting
1 None 0 Up to 4 Mar 12
DDR Hardware replacement
Stability 200/200 Non Customer impacting
10 None 0 50 May 12
15
16
3
17
28
10
Completed 21C Upgrades
Progr No:
Upgrade Key Drivers
Upgrades Complete / Total
BB EUs and/or Ethernet Circuits per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per wee
Date Ende
d
EAD Chassis Code Upgrade
Stability 6950/6950 Up to 15 Ethernet Circuits
Up to 200 Ethernet,Mobile
Ethernet
<1 Up to 1000
Feb 12
21C BRAS Core Migration
Capacity 151/151 Non Customer Impacting
Up to 12 WBC 0 16-30 Feb 12
BEA VS Card Upgrade
Capacity 20/20 – Complete
Non-Customer Impacting
1 None 0 Up to 4 Mar 12
DDR Hardware replacement
Stability 200/200 Non Customer impacting
10 None 0 50 May 12
MPLS Core Router Upgrades
Code Update 109/109
Av 20000Min 0
Max 100000
1 WBMC180
(240 Max)
1-4 Jun12
16
3
17
28
11
11
Completed 21C Upgrades
Progr No:
Upgrade Key Drivers
Upgrades Complete / Total
BB EUs and/or Ethernet Circuits per upgrade
Upgrades per PEW
Affected Products
Av. End user outage (Mins)
Upgrades per week
Date Ende
d
High ThroughputBEA-VS
Capacity 5/5 Av 120K 1 WBC / WCC
45 mins 1 Jun 12
BRAS software Upgrade
Stability 193/193 Av 17000Max 32000
1 WBC / WBMC/
WCC
45 mins Up to 50 Jul 12
Copper MSANSoftware Upgrade
Stability / Capacity
5844/5844 Average 700
120 WBC /WBMC
30 mins 480 May 12
2nd vendor MSAN Upgrade
Stability 702/702 Average 700
40-50 WBC / WBMC/WCC
40 mins 200 - 250 Jul 12
2nd Vendor MSPE
Stability 51/51 Av 20k 1 WBC / WCC /
Ethernet
30 secs – 2 mins
2 Jan 13
22
26
27
30
23
Broadband Services on 21CN
12
46
9
12
11
11
14
20 22
23
2628
29
31
3227
3834
40 3435
36
37
39
44
4545
45
45
13
Ethernet Service on 21CN
14
Descriptions
15
Management of risk
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