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List: loadbalancing-l
Subject: RE: [load balancing] Alteon ports flapping
From: <elig () bezeq ! com>
Date: 2007-01-20 17:48:36
Message-ID: C84148A2FF24AA47980F3FF7E804B9B003103DD1 () avgad1-e2k ! bezeq ! com
[Download RAW message or body]
Thanks. It is interesting that Nortel would say so. I am saying it because I am at \
the release recommended in the release notes:
Switch is up 0 days, 0 hours, 13 minutes and 44 seconds.
Last boot: 23:52:22 Sat Jan 13, 2007 (software PANIC)
Last apply: 17:34:11 Sat Jan 13, 2007
Last save: 17:36:24 Sat Jan 13, 2007
Hardware Order No: EB141201000 Serial No: SSCPB806FJ Rev: 14
Mainboard Hardware: Part No: P316677-B Rev: 05
Management Processor Board Hardware: Part No: P314080-A Rev: 02
Fast Ethernet Board Hardware: Part No: P316676-A Rev: 03
Software Version 23.0.3.4 (FLASH image1), active configuration.
Eli Gal
________________________________
From: owner-lb-l@vegan.net [mailto:owner-lb-l@vegan.net] On Behalf Of Oliver Adam
Sent: Saturday, January 20, 2007 5:50 PM
To: lb-l@vegan.net
Subject: Re: [load balancing] Alteon ports flapping
I would suggest to upgrade to AlteonOS 23.0.3.4 - you have mentioned that the unit \
became stable as soon as you have removed the proxy IP. There is a known problem with \
the 2208 and the 2216 in case proxy IPs are used. Out of the 23.0.3.4 release notes: \
Q01389286
PANIC: 2208/2216 switches may panic when Proxy IP address are being used and the \
switch receives an ICMP echo request sent to the Proxy IP address. This panic affects \
ONLY 2208 and 2216 switch types. It is strongly recommended that all customers with \
2208/2216 switches using code version 23.0 upgrade to 23.0.3.4 immediately.
----- Original Message -----
From: elig@bezeq.com
To: lb-l@vegan.net
Sent: Tuesday, January 16, 2007 2:45 PM
Subject: RE: [load balancing] Alteon ports flapping
The reason for the apparent flapping had been discovered: the Alteon (model 2208) \
was crashing and rebooting every hour or so, if Proxy IP was configured. When the PIP \
was removed from the configuration, it stopped crashing…
-----------
Eli Gal
________________________________
From: owner-lb-l@vegan.net [mailto:owner-lb-l@vegan.net] On Behalf Of Mansu Kim
Sent: Tuesday, January 16, 2007 2:23 AM
To: lb-l@vegan.net
Subject: Re: [load balancing] Alteon ports flapping
It looks SFP is not fully compatible with the switch.
why don't you try to change SFP ?
Thanks,
-mansu
On 1/13/07, elig@bezeq.com <elig@bezeq.com> wrote:
This Alteon is connected to a Nortel 8600 switch. Every couple of hours the \
following messages are displayed in the Alteon's log. I am not sure what "SFP \
detection" means, thus cannot think of a reason for the ports changing up/down \
states.
May this be related to a spanning tree topology change at the 8600?
It is worth noting that Alteon P ort9 is configured on STG1, not STG3, and is \
attached to a 8600 port belonging to STG1.
Alteon's port10 is indeed configured on STG3 at the Alteon, because it belongs to a \
different VLAN than Port9, and the Alteon made me allocate it to a distinct STG. \
However, the STG of the 8600 port attaching Port10 could not be changed because of \
existing VLAN configuration; i.e. it remained at the original STG1).
Thanks, Eli
Jan 13 9:37:46 INFO mgmt: SFP detected in port 9
Jan 13 9:37:46 INFO mgmt: SFP detected in port 10
Jan 13 9:37:48 NOTICE system: link up on port 10
Jan 13 9:37:48 NOTICE system: link up on port 9
Jan 13 9:38:18 ALERT stp: STG 3, topology change detected
--
Regards,
-Mansu Kim
With in Korea Tel : 070-7517-7080
US Tel : +1-408-660-0089
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<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff
size=2>Thanks. It is interesting that Nortel would say so. I am saying it
because I am at the release recommended in the release
notes:</FONT></SPAN></DIV>
<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff size=2>Switch
is up 0 days, 0 hours, 13 minutes and 44 seconds.<BR>Last boot: 23:52:22 Sat Jan
13, 2007 (software PANIC)<BR>Last apply: 17:34:11 Sat Jan 13, 2007<BR>Last save:
17:36:24 Sat Jan 13, 2007</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff
size=2>Hardware Order No: EB141201000 Serial
No: SSCPB806FJ Rev: 14<BR>Mainboard
Hardware: \
Part No: P316677-B Rev: 05<BR>Management Processor Board Hardware: Part
No: P314080-A Rev: 02<BR>Fast Ethernet Board
Hardware: Part No: P316676-A
Rev: 03</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff
size=2>Software Version 23.0.3.4 (FLASH image1), active
configuration.</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=084024517-20012007><FONT face=Arial color=#0000ff size=2>Eli
Gal</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=he dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> owner-lb-l@vegan.net
[mailto:owner-lb-l@vegan.net] <B>On Behalf Of </B>Oliver Adam<BR><B>Sent:</B>
Saturday, January 20, 2007 5:50 PM<BR><B>To:</B>
lb-l@vegan.net<BR><B>Subject:</B> Re: [load balancing] Alteon ports
flapping<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>I would suggest to upgrade to AlteonOS 23.0.3.4 -
you have mentioned that the unit became stable as soon as you have removed the
proxy IP. There is a known problem with the 2208 and the 2216 in case proxy IPs
are used. Out of the 23.0.3.4 release notes:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Q01389286<BR>PANIC: 2208/2216 switches may panic
when Proxy IP address are being used and the switch receives an ICMP echo
request sent to the Proxy IP address. This panic affects ONLY 2208 and 2216
switch types. It is strongly recommended that all customers with 2208/2216
switches using code version 23.0 upgrade to 23.0.3.4 immediately.</FONT></DIV>
<BLOCKQUOTE dir=rtl
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 \
2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message \
----- </DIV> <DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=elig@bezeq.com href="mailto:elig@bezeq.com">elig@bezeq.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=lb-l@vegan.net
href="mailto:lb-l@vegan.net">lb-l@vegan.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, January 16, 2007 2:45
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [load balancing] Alteon
ports flapping</DIV>
<DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2></FONT><BR></DIV>
<DIV class=Section1 dir=rtl>
<P class=MsoNormal dir=ltr><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The reason for the
apparent flapping had been discovered: the Alteon (model 2208) was crashing
and rebooting every hour or so, if Proxy IP was configured. When the PIP was
removed from the configuration, it stopped crashing…</SPAN></FONT></P>
<P class=MsoNormal dir=ltr><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<DIV>
<P dir=ltr><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: \
Arial">-----------</SPAN></FONT></P> <P dir=ltr><FONT face=Arial color=navy \
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Eli
Gal</SPAN></FONT></P></DIV>
<DIV>
<DIV class=MsoNormal dir=ltr style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal dir=ltr><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: \
Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: \
10pt; FONT-FAMILY: Tahoma"> <A \
href="mailto:owner-lb-l@vegan.net">owner-lb-l@vegan.net</A> \
[mailto:owner-lb-l@vegan.net] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of \
</SPAN></B>Mansu Kim<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> \
Tuesday, January 16, 2007 2:23 AM<BR><B><SPAN style="FONT-WEIGHT: \
bold">To:</SPAN></B> lb-l@vegan.net<BR><B><SPAN style="FONT-WEIGHT: \
bold">Subject:</SPAN></B> Re: [load balancing] Alteon ports \
flapping</SPAN></FONT></P></DIV> <P class=MsoNormal dir=ltr><FONT face=Arial \
size=2><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal dir=ltr style="MARGIN-BOTTOM: 12pt"><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">It looks SFP is
not fully compatible with the switch.<BR><BR>why don't you try to change SFP
?<BR><BR>Thanks,<BR>-mansu</SPAN></FONT></P>
<DIV>
<P class=MsoNormal dir=ltr><SPAN class=gmailquote><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt">On 1/13/07, <B><SPAN
style="FONT-WEIGHT: bold"><A
href="mailto:elig@bezeq.com">elig@bezeq.com</A></SPAN></B> <<A
href="mailto:elig@bezeq.com">elig@bezeq.com</A>>
wrote:</SPAN></FONT></SPAN></P>
<DIV>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">This</SPAN></FONT> <FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Alteon is
connected to a</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Nortel</SPAN></FONT> <FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">8600
switch. Every couple of hours the following</SPAN></FONT> <FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">messages are
displayed in the Alteon's log. I am not sure what "SFP</SPAN></FONT> <FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">detection"
means, thus cannot think of a reason for the ports changing up/down states.
</SPAN></FONT></P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">May this be related to a spanning
tree topology change at the 8600? </SPAN></FONT></P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">It is worth noting
that</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Alteon P</SPAN></FONT> <FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">ort9</SPAN></FONT> <FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">is
configured on STG1,</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">not STG3,</SPAN></FONT> <FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">and</SPAN></FONT> <FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">is attached to a 8600
port belonging to</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">STG1.</SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Alteon's port10</SPAN></FONT>
<FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">is</SPAN></FONT> <FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">indeed</SPAN></FONT>
<FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">configured on STG3 at the
Alteon,</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">because it belongs to a
different</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">VLAN than</SPAN></FONT> <FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Port9, and
the Alteon made me allocate it to a distinct STG. However, the STG of
the</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">8600 port attaching
Port10</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">could not</SPAN></FONT> <FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">be</SPAN></FONT> <FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">changed because of
existing VLAN configuration; i.e. it remained at the original
STG1).</SPAN></FONT></P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks, Eli</SPAN></FONT></P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jan 13 9:37:46
INFO mgmt: SFP detected in port 9</SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jan 13 9:37:46
INFO mgmt: SFP detected in port 10</SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jan 13 9:37:48 NOTICE
system: link up on port 10</SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jan 13 9:37:48 NOTICE
system: link up on port 9</SPAN></FONT> </P>
<P dir=ltr><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jan 13 9:38:18
ALERT stp: STG 3, topology change
detected</SPAN></FONT></P></DIV></DIV>
<P class=MsoNormal dir=ltr><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><FONT face=Arial size=2></FONT><FONT face=Arial
size=2></FONT><BR><BR clear=all><BR>-- <BR>Regards,<BR>-Mansu Kim<BR>With in
Korea Tel : 070-7517-7080<BR>US Tel : +1-408-660-0089
</SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>
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