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bltn9302.txt
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1993-11-13
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************************************************************************
DDN MGT Bulletin : 9302 DISA DDN Defense Communications System
12 Nov 1993 Published by: DDN Network Info Center
(NIC@NIC.DDN.MIL) (800) 365-3642
DEFENSE DATA NETWORK
MANAGEMENT BULLETIN
The DDN MANAGEMENT BULLETIN is distributed online by the DDN Network
Information Center under DISA contract as a means of communicating
official policy, procedures and other information of concern to
management personnel at DDN facilities. Back issues may be read
through the TACNEWS server ("@n" command at the TAC) or may be
obtained by FTP (or Kermit) from the NIC.DDN.MIL host [192.112.36.5]
using login="anonymous" and password="guest". The pathname
for bulletins is ddn-news/ddn-mgt-bulletin-nn.txt (where "nn" is the
bulletin number).
************************************************************************
Update on the MILNET Transition to BGP
BGP Cutover Less Critical
=========================
DDN MGT Bulletin 130 stated that all DDN clients must convert
from EGP to BGP protocol by 1 October 1993. This was based on
the growth in the number of MILNET gateways advertised in
routing updates. This number was approaching the 510 gateway
limit imposed by EGP.
With the downsizing and reconfiguration of the MILNET, the
number of gateways has dropped, and it no longer appears that
the 510 limit will be reached under the current MILNET
architecture. As a result, there is no longer a critical need
to transition from EGP to BGP.
However, BGP remains the recommended external gateway
protocol and subscribers should maintain the goal of converting
to BGP:
1) It is a more efficient protocol which reduces network
traffic.
2) It is more robust, better able to detect and prevent
routing loops.
3) It will prepare subscribers for upcoming network
architectures which will likely eliminate EGP.
At this time DISA has not established a mandatory BGP implementation
deadline. When a new deadline is established, we will notify all
users at the earliest possible date.
Please refer questions concerning this matter to Capt Lent,
DISA/UTDS, DSN 222-2757/COMM (703) 692-2757 or E-Mail address
lentj@cc.ims.disa.mil.
Required Software/Firmware Versions
===================================
GateD users should run 3.0Alpha software or later.
Cisco users should refer to "Notes for Cisco Users", below.
ROUTER/GATEWAY ADMINISTRATORS FOR NON-CISCO OR NON-GateD ROUTERS
SHOULD CONTACT THE APPROPRIATE VENDOR(S) TO DETERMINE THE
REQUIRED SOFTWARE VERSION TO DO BGP.
Notes for Cisco Users
=====================
The following information is provided by cisco systems:
The following recommendations will assure interoperability
between Cisco "customer premise" routers and the MILNET BBN
T/20 backbone nodes. STAYING WITH 9.0.x SOFTWARE FOR CSC/3
BASED SYSTEMS WILL HELP AVOID THE MEMORY ISSUES CURRENTLY
BEING EXPERIENCED ON SOME CSC/3 SYSTEMS running 9.1.x.
System Type Cisco software revision
--------------------------- -----------------------
CSC/3 68020 CPU w/ 4MB RAM 9.0.5 (or later)
CSC/4 68040 CPU w/ 16MB RAM 9.1.4(3) (or later)
APPROXIMATE #OF IP ROUTES WHICH CAN BE HELD IN MEMORY:
System Type Total IP Routing Table Entries
------------------------ ------------------------------
CSC/3 4MB RAM 9.0.X SW 4000-5000
CSC/3 4MB RAM 9.1.X SW 1000-2000
CSC/4 16MB RAM 9.1.X SW 40,000
CLNP/CLNS routing table entries can be significantly larger,
hence less entries may be accommodated.
CISCO SYSTEMS STRONGLY RECOMMENDS THAT ALL CUSTOMERS UPGRADE
TO CSC/4 68040 W/ 16MB RAM AND THE MOST CURRENT SOFTWARE
RELEASE IN THE 9.1 TREE (CURRENTLY 9.1.7)
SOFTWARE UPGRADES MAY REQUIRE MICROCODE UPGRADES FOR ROUTER
INTERFACE CARDS. Software upgrades and microcode upgrades are
free of charge to cisco maintenance customers or customers
under standard warranty (90 days).
CSC/4 CPU card upgrade can be accomplished via ordering:
Part# CSC/4U @ $3600 (GSA schedule GSOOK-91-AGS-5016 PS07
(expires 3/31/94)) (SOFTWARE NOT INCLUDED).
Software upgrades for non-maintenance customers is $495.00
per chassis (GSA schedule GSOOK-91-AGS-5016 PS07 (expires
3/31/94)).
Microcode upgrades for non-maintenance customers is $500.00
per interface card.
Contact cisco systems for additional upgrade information and
specific microcode upgrade part numbers.