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PlusNet Central Pipes Information

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Plusnet currently have 12 x 622Mb BT Central Pipes giving a total available bandwidth of 7464 Mb.
Each of these central pipes are split into 4 x 155Mb segments and terminate on Juniper ERX-1440's or Juniper E320's.

Generic information about BT Central pipes can be found on my page about how adsl works 2 and more information about the Junipers on how adsl works 3 and also BT Centrals.

In addition to the BTw Centrals, they also have:

  • a separate (flexible) LLU feed for customers who are on the LLU products
  • Several thousand customers on the RIN network
  • 4 x 155Mb Centrals for Brightview customers.
  • As from 2009, customers trialling adsl2+ (Up to 24Mbps) via WMBC/WBC

Whilst Central Pipes have a long lead time, inactive segments can be deployed fairly quickly and Plusnet normally activate one segment at a time as and when more bandwidth is required. To see what segments and bandwidth is currently in use see the table below.

Overview of Plusnet pipes and segments in use
Central DNS Name/
Aggregator
Location
Central
Pipes
Activated Segments
Inactive Segments
           
Plusnet 2 ptn-ag2 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
Plusnet 3 ptn-ag1 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
Plusnet 4 pte-ag1
(ex pth-ag3)
Telehouse East
1 x 622 Mb
4 x 155 Mb
0
Plusnet 5 pte-ag2 Telehouse East
1 x 622 Mb
4 x 155 Mb
0
Plusnet 6 thn-ag1 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
PlusNet 7 thn-ag3 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
PlusNet 8 pcl-ag01 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 9 pcl-ag02 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 10 pcl-ag03 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 11 pcl-ag04 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 12 thn-ag1 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
Plusnet 13 pcl-ag01 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 14 pcl-ag02 London
1 x 622 Mb
4 x 155 Mb
0
Plusnet 15 thn-ag2 Telehouse North
1 x 622 Mb
4 x 155 Mb
0
       
BT Centrals Sub Total
8708 Mb
8708 Mb
155 Mb
Juniper E320 thn-ag2 Telehouse North
LLU
270 Mb
flexible
  thn-ag2 Telehouse North
WMBC & WBC
109 Mb
(20/08/09)
  pcl-ag04 London
21CN link
see below
(29/10/09)
           
Total     
 
 
 

Brightview Central Pipes
Pipe Name Tracert Details Size Router Location
           
BV1 ptn-ag03 lo0-brightview.ptn-ag03.plus.net 155 Mb Cisco 7301 Telehouse North
BV2 thn-ag4 lo0-brightview.thn-ag4.plus.net 155 Mb Cisco 7301 Telehouse North
BV3 pcl-ag05 lo0-brightview.pcl-ag05.plus.net 155 Mb Cisco 7301 London
BV4 pcl-ag06 lo0-brightview.pcl-ag06.plus.net [84.92.3.74] 155 Mb Cisco 7301 London
Note: wef May 08 - New MAAF customers will use the PN centrals - such as Plusnet 12

You can view each central and gateway performance from their utilisation graphs on the portal here.
A summary of traffic packets dropped can be viewed here.

Type of traffic
Live feed of traffic utilisation type.

To find out which pipe you are connected do a tracert and by comparing the results with the table below you should be able to see which aggregator (gateway router) you are connected to.

Plusnet Gateway Routers & their IP Addresses
Name Tracert Details Pipes   Router Location
         
Plusnet 2
(Juniper2)
lo0-plusnet.ptn-ag2.plus.net [195.166.128.53] 622Mb Juniper
ERX 1440
Telehouse
North
Plusnet 3
(Juniper1)
lo0-plusnet.ptn-ag1.plus.net [195.166.128.123] 622Mb Juniper
ERX 1440
Telehouse
North
Plusnet 4
(Juniper3)
lo0-plusnet.pte-ag1.plus.net [195.166.128.64] 622Mb Juniper
ERX 1440
Telehouse
East
Plusnet 5
(Juniper4)
lo0-plusnet.pte-ag2.plus.net [195.166.128.72] 622Mb Juniper
ERX 1440
Telehouse
East
Plusnet 6
(Juniper5)
lo0.plusnet.thn-ag1.plus.net [195.166.128.101] 622 Mb Juniper
ERX 1440
Telehouse
North
Plusnet 7 lo0-plusnet.thn-ag3.plus.net [195.166.128.80] 622 Mb Juniper
E320
Telehouse
North
Plusnet 8 lo0-plusnet.pcl-ag01.plus.net [195.166.128.27] 622 Mb Juniper
E320
London
Plusnet 9 lo0-plusnet.pcl-ag02.plus.net [195.166.128.39] 622 Mb Juniper
E320
London
Plusnet 10 lo0-plusnet.pcl-ag03.plus.net [195.166.128.109] 622 Mb Juniper
E320
London
Plusnet 11 lo0-plusnet.pcl-ag04.plus.net [195.166.128.134] 622 Mb Juniper
E320
London
Plusnet 12 lo0.plusnet.thn-ag1.plus.net [195.166.128.101] 622 Mb Juniper
ERX 1440
Telehouse
North
Plusnet 13 lo0-plusnet.pcl-ag01.plus.net [195.166.128.27] 622 Mb Juniper
E320
London
         
LLU - E320 lo0.plusnet.thn-ag2.plus.net [195.166.128.93] 270 Mb Juniper
E320
Telehouse
North
WMBC & WBC lo0.plusnet.thn-ag2.plus.net [195.166.128.93]
?
Juniper
E320
Telehouse
North

Update Nov 2004 - UserTools have created a gateway checker which will quickly tell you which gateway you are connected to http://users.plus.net/@gateway

Plusnet 21CN Network Timeline
Gateway Location
Capacity
Date
   
   
THN-AG2  
100 Mb added
08-01-10
THN-AG2  
300 Mb added
04-01-10
   
100Mb added
15.12.09
   
100 Mb added
11-12-09
   
100Mb added
09-12-09
   
540 Mb added
(02-12-09)
   
100 Mb added
(11-11-09)
pcl-ag04 London
(29/10/09)

 

Plusnet WBC/WMBC Network Timeline
Gateway Location
Capacity
Date
thn-ag2 Telehouse North
109 Mb
(20/08/09)
       
       

 

Plusnet Central Pipe Timeline
Since 2009 WMBC & WBC capacity added which is not included in these figures.
Date Activated Central Aggregated on
(gateway)
Total Segments
Total In Service
         
26-11-09 Plusnet 15 thn-ag2
56
8708 Mb
10-11-09 Plusnet 15 thn-ag2
55
8551 Mb
30-10-09 Plusnet 15 thn-ag2
54
8396 Mb
22-10-09 Plusnet 14 pcl-ag02
52
8086 Mb (status check of live pipes)
19-10-09 Plusnet 14 pcl-ag02
51
7929 Mb
30-09-09 Plusnet 14 thn-ag01
50
7774 Mb
28-08-09 Plusnet 14 pcl-ag02
49
7619 Mb
25-08-09 Plusnet 13 pcl-ag03
48
7467 Mb (rounded up 155.5Mbs)
13-08-09 Plusnet 13 pcl-ag03
47
7285 Mb
31-07-09 Plusnet 13 pcl-ag01
46
7130 Mb
30-06-09 Plusnet 13 pcl-ag01
45
6975 Mb

Spring/
Summer
2009

Plusnet 12 thn-ag1 (x4)
44
At some point numerous segments were added without being reported via SS. Note: some gateways now have more than 4 x segments. PN12 is for MAAF
Plusnet 11 pcl-ag04 (x3)
40
30-04-09 Plusnet 11 pcl-ag04
37
5735 Mb
27-03-09 Plusnet 10 pcl-ag03
36
5580 Mb
18-02-09 Plusnet 10 pcl-ag03
35
5425 Mb
06-02-09 Plusnet 10 pcl-ag03
34
5270 Mb
29-01-09 Plusnet 10 pcl-ag03
33
5115 Mb
22-01-09 Plusnet 9 pcl-ag02
32
4960 Mb
23-10-08 Plusnet 9 pcl-ag02
31
4805 Mb
25-09-08 Plusnet 9 pcl-ag02
30
4650 Mb
06-06-08 Plusnet 9 pcl-ag02
29
4495 Mb
May 08 Plusnet 7 thn-ag3
28

4340 Mb

17 Apr 08 Plusnet 7 thn-ag3
27
4185 Mb
20 Mar 08 Plusnet 8 pcl-ag01
26
4030 Mb
5 Feb 08 Plusnet 7 thn-ag3
25
3875 Mb
Jan 08 Plusnet 8 pcl-ag01   lit for new MAAF custs.
14 Jan 08 Plusnet 8 pcl-ag01
24
3720 Mb
12 Nov 07 Plusnet 8 pcl-ag01
23
3565 Mb
01 Oct 07 Plusnet 8 pcl-ag01
22
3410 Mb
19 Jun 07 Plusnet 7 thn-ag3
21
3265 Mb
27 Apr 07 Juniper 5 PlusNet 6
thn-ag1
20
3110 Mb
06 Mar 07 Juniper 5 PlusNet 6
thn-ag1
19
2945 Mb
23 Feb 07 Juniper 5 PlusNet 6
thn-ag1
18
2790 Mb
Jul 2006 Juniper 5 ? minus 1 x 622 (*2 segments reportedly)
-4 = 16
2488 Mb ? (*not sure what happened here)
28 Feb 06 MN Network 1 x 155Mb pipe
1
3265 Mb (continuation of MN mergance into the Network)
23 Feb 06 Juniper 5

2 x 155 Mb -
Pipe 5

20
3110 Mb (start of mergance with MN customers) also tfr the other 2 pipe 5 segments to this new Juniper.
03 Jan 06 Juniper 2 1 x 155 Mb - Pipe 5
18
2790 Mb (for MN only)
17 Aug 05 Juniper 2 1 x 155 Mb - Pipe 2
17
2635 Mb
21 Jun 05 Juniper 4 1 x 622 Mb (from Juniper3)
16
2488 Mb- Installation of Juniper 4 only.
22 Feb 05 Juniper 2 1 x 155 Mb - Pipe 5
16
2488 Mb ** (see below)
16 Feb 05 Redback 2 5 x 155 Mb
-5 = 15
Removal = 2325 Mb
14 Feb 05 Redback 1 5 x 155 Mb
-5 = 20
Removal = 3100 Mb
14 Feb 05 Juniper 3 2 x 622 Mb - Pipe 3 & 4
25
8 segments = 3875 Mb
21 Jan 05 Juniper 2 1 x 155 Mb - Pipe 2
17
2635 Mb
04 Nov 04 Juniper 1 1 x 155 Mb - Pipe 1
16
2480 Mb
08 Oct 04 Juniper 2 1 x 155 Mb - Pipe 2
15
2325 Mb
20 Sep 04 Juniper 1 1 x 155 Mb - Pipe 1
14
2170 Mb
04 Aug 04 Juniper 2 1 x 155 Mb - Pipe 2
13
2015 Mb
27 Jan 04 Juniper 1 2 x 155 Mb - Pipe 1
12
1860 Mb
2004 Redbacks 10 x 155 Mb
10
1550 Mb
19 Nov 2003 2nd Gigabit Ethernet link to the LINX network,
2nd Fast Ethernet link to the Lonap network (used to peer directly with popular sites like ADSLGuide).
14 Nov 03 Redback 9th 155 pipe
9
This was the 7th 155Mb pipe to be introduced in 2003
13 Aug 03 Redback 7th 155 pipe
7
 
By  Apr 03 Redback 5 x 155 Mb
5
 
Start 2003 Redback 2 x 155 Mb
2
 
Please note this table does not include LLU capacity in use by 16000 customers, nor several thousand customers that are on the RIN platform.
Redback 2 (pth-ag2) Telehouse East
To be deployed as a backup device.
Redback 1 (pth-ag1) Telehouse East
To be deployed as a backup device.

 

** There are several differences between the 622Mbps and 155Mbps pipes, which means that throughput on a single 622Mb pipe is more or less equivalent to 5 x 155Mb pipe. For more information see my page on the BT Centrals.


This page was getting rather long therefore I have moved some of the histotic information to a new page
- Plusnet Central Pipes historic information.

 

 
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