/24's run amuck?

Kevin_Oberman · February 6, 2001, 9:24pm

Date: Tue, 6 Feb 2001 16:10:28 -0500 (Eastern Standard Time)
From: Alex Rubenstein <alex@nac.net>
Sender: owner-nanog@merit.edu

ARIN: What about people who use AS's that aren't assigned to them?

ARIN is only responsible for the Americas and, maybe, parts of
Africa. Lots of ASes are not in ARIN. Try RIPE and APNIC for more
complete information. Or try the IRR. In this case, both APNIC and the
IRR show this AS.

aut-num: AS1221
as-name: ASN-TELSTRA
descr: Telstra Pty Ltd
Locked Bag No. 5744
GPO, Canberra, ACT, 2601
admin-c: GH105-AP
tech-c: DW187-AP
remarks: AS assigned by the former InterNIC
remarks: Object automatically converted from the APNIC(RIPE181) registry
mnt-by: MAINT-AS1221
changed: hostmaster@apnic.net 20000131
changed: auto-rpsl@rpsl.apnic.net 20001213
source: APNIC

Community: Should one filter these announcements?

Why?

Exodus: Don't you care?

Why should they?

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net Phone: +1 510 486-8634

Valdis_Kletnieks · February 6, 2001, 9:49pm

> Community: Should one filter these announcements?
Why?

Umm... because if you filter the /24s you will remove 58K of 95K,
or some 61%. I'm *sure* that having a routing table 40% of the original
size will help the next time you have a BGP flap.

Your mileage may vary, depending on the actual amount of improvement
obtainable by proper aggregation and/or filtering.

> Exodus: Don't you care?
Why should they?

Umm.. because urinating in the swimming pool tends to irritate the
other people at the pool party? Or because if *everybody* acts that
way, you get a Really Dirty swimming pool?

Vijay_Gill1 · February 6, 2001, 9:55pm