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Technology Stocks : MRV Communications (MRVC) opinions?
MRVC 9.975-0.1%Aug 15 5:00 PM EST

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To: rascalbythesea who wrote (14040)6/22/1999 11:36:00 AM
From: Sector Investor  Read Replies (1) of 42804
 
From Yahoo! Kaka, where did you find this - got a link?

Now does everyone understand the value of already debugged software acquired from Xyplex?

*******************

Seen on SI. Look:

Juniper Under Scrutiny After
Internet Outages
(06/18/99, 10:36 a.m. ET)
By David Greenfield and Stephen Saunders, Data
Communications

Cisco may be taking heat for Internet
outages traced to problems with its
Internetwork Operating System routing
code, but recent evidence suggests it's
not the only vendor shipping buggy
software.

Reports indicate that the June 2 outage that hit Cable &
Wireless was caused by a failure in the software running
on routers from Cisco archrival Juniper Networks. The
North American Network Operators' Group mailing list
had originally blamed Cisco.


"I received some third-party information that C&W was
field-testing some Juniper routers, and this particular
outage was a Juniper bug, not a Cisco bug," said Sean
Donelan, network architect at ISP Data Research
Associates.

Donelan declined to elaborate. Juniper refused
comment.

If the information is true, it could be bad news for
Juniper -- whose campaign against Cisco is founded on
the supposed strength of its routing software.

In the meantime, more details have emerged about the
Cisco glitch, which has affected networks run by AT&T
and Uunet Technologies, among others, according to
Donelan.

"The bug affects the Cisco Express Forwarding (CEF)
architecture, which causes a route cache to forget a
route and then drop any packets destined for that
network,"
said Edward Henigin, chief technical officer
at Texas Networking, an ISP that was affected.

[Sector note: This sounds very much like a problem I have been having with Earthlink, where, if I am idle for a while, the connection is still intact and I can send packets but not receive them. I have to disconnect and reconnect. This happens only about 2-3 times each day - a royal pain.]

ISPs can temporarily solve the problem by disabling
CEF, Henigin said. But that can more than double the
load on the router's CPU, degrading performance and
at times crashing the router entirely.


Cisco said the problem was encountered on its 7500
series router platform, and that a fix has been issued.
But as of today, it was unable to give the Web location
of the patch.

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