Re: Weekly Routing Table Report

2012-08-24 Thread Lori Jakab 
On 8/24/2012 11:33 AM, Routing Analysis Role Account wrote:

[...]

 Analysis Summary
 

 BGP routing table entries examined:  264582

Isn't this supposed to be 400K? What happened this week?

-Lori

 Prefixes after maximum aggregation:   97761
 Deaggregation factor:  2.71
 Unique aggregates announced to Internet: 119633
 Total ASes present in the Internet Routing Table: 29036
 Prefixes per ASN:  9.11
 Origin-only ASes present in the Internet Routing Table:   22245
 Origin ASes announcing only one prefix:   11565
 Transit ASes present in the Internet Routing Table:4486
 Transit-only ASes present in the Internet Routing Table:492
 Average AS path length visible in the Internet Routing Table:   4.6
 Max AS path length visible:  32
 Max AS path prepend of ASN ( 48687)  24
 Prefixes from unregistered ASNs in the Routing Table:   435
 Unregistered ASNs in the Routing Table: 144
 Number of 32-bit ASNs allocated by the RIRs:   3169
 Number of 32-bit ASNs visible in the Routing Table:2305
 Prefixes from 32-bit ASNs in the Routing Table:6164
 Special use prefixes present in the Routing Table:0
 Prefixes being announced from unallocated address space: 74
 Number of addresses announced to Internet:   2132781732
 Equivalent to 127 /8s, 31 /16s and 170 /24s
 Percentage of available address space announced:   57.5
 Percentage of allocated address space announced:   57.6
 Percentage of available address space allocated:   99.9
 Percentage of address space in use by end-sites:   93.3
 Total number of prefixes smaller than registry allocations:  117536

 APNIC Region Analysis Summary
 -

 Prefixes being announced by APNIC Region ASes:59813
 Total APNIC prefixes after maximum aggregation:   15336
 APNIC Deaggregation factor:3.90
 Prefixes being announced from the APNIC address blocks:   60438
 Unique aggregates announced from the APNIC address blocks:22879
 APNIC Region origin ASes present in the Internet Routing Table:2883
 APNIC Prefixes per ASN:   20.96
 APNIC Region origin ASes announcing only one prefix:806
 APNIC Region transit ASes present in the Internet Routing Table:609
 Average APNIC Region AS path length visible:4.7
 Max APNIC Region AS path length visible: 26
 Number of APNIC region 32-bit ASNs visible in the Routing Table:242
 Number of APNIC addresses announced to Internet:  551407040
 Equivalent to 32 /8s, 221 /16s and 205 /24s
 Percentage of available APNIC address space announced: 64.4

 APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431
 (pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
 APNIC Address Blocks 1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
 49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,

 ARIN Region Analysis Summary
 

 Prefixes being announced by ARIN Region ASes: 96228
 Total ARIN prefixes after maximum aggregation:43322
 ARIN Deaggregation factor: 2.22
 Prefixes being announced from the ARIN address blocks:97518
 Unique aggregates announced from the ARIN address blocks: 38278
 ARIN Region origin ASes present in the Internet Routing Table:10585
 ARIN Prefixes per ASN: 9.21
 ARIN Region origin ASes announcing only one prefix:4892
 ARIN Region transit ASes present in the Internet Routing Table:1244
 Average ARIN Region AS path length visible: 4.0
 Max ARIN Region AS path length visible:  24
 Number of ARIN region 32-bit ASNs visible in the Routing Table:   7
 Number of ARIN addresses announced to Internet:

Re: Cent OS migration

2011-05-09 Thread Lori Jakab 
On 05/09/2011 08:58 PM, Jay Ashworth wrote:
 CentOS and SuSE 11 are the only rational free Linuces for business use.

With the uncertainty surrounding the future of CentOS, it's not
something I would recommend for business use at the moment. See the
following article for a collection of links why that's the case:

http://evilrouters.net/2011/04/11/its-time-to-move-on-from-centos/

Regards,
Lori Jakab

Re: [Nanog] Re: LISP

2011-04-12 Thread Lori Jakab 
On 04/12/2011 02:12 AM, Jason Frisvold wrote:
 On Apr 11, 2011, at 11:02 AM, harbor235 wrote:
  http://www.lisp4.net/

 This sounds a lot like LNP in the telco world.  Is the goal here to
 make IP's portable ?  

One of the goals, yes.

 Or is this a viable way to access IPv6 from either an IPv4 host or an
 IPv6 host unfortunate enough to not have full IPv6 tables?

LISP will not do translation for you, so an IPv6-only host will not be
able to talk to an IPv4-only host by just using LISP. However, solving
the problem of not having full IPv6 tables is possible in two ways: 1)
you use IPv4 locators so basically tunnel the traffic over IPv4; or 2)
use a proxy tunnel router that does have access to full IPv6 tables.


 And do all of the networks you pass through have to be LISP enabled?

Ideally, the source and destination networks both have to be LISP
enabled, the core doesn't have to know anything about LISP. It is
however possible for LISP enabled sites to communicate with sites not
deploying LISP, using proxy tunnel routers deployed by third parties.
For more discussion about how this might be deployed see Section 4 of
the LISP deployment document:

http://tools.ietf.org/html/draft-jakab-lisp-deployment-03#section-4

Regards,

-- 
Lori Jakab
UPC Advanced Broadband Communications Center

Re: Implementations/suggestions for Multihoming IPv6 for DSL sites

2011-04-08 Thread Lori Jakab 
On 04/08/2011 06:39 PM, Owen DeLong wrote:
 On Apr 8, 2011, at 9:30 AM, Seth Mattinen wrote:

 On 4/8/11 8:31 AM, Job Snijders wrote:
 As Seth pointed out SHIM6 is still an academic exercise
 Another Locator / ID separator protocol is LISP. The advantage is that you 
 don't need to 
 change the host but only the CPE. I've been using it to multi-home my house 
 and it works
 fine. I'm multihoming my IPv6 /48 over a v6-only DSL and a v4-only FTTH 
 connection. 

 More information about LISP be found here: http://www.lisp4.net/

 Ah, I completely forgot about LISP, which reminds me, I'd wanted to set
 it up for fun and learning.

 ~Seth
 LISP can also be a good option. Comes with slightly more overhead in terms of
 encapsulation/etc. than the GRE tunnels I use and has limited (if any) 
 functionality
 for IPv4 (which GRE supports nicely).

Maybe you meant ILNP here? AFAIK, IPv4 and IPv6 are equal citizens for LISP.

Regards,
-Lori Jakab

 Owen