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08-18-2011 07:49 PM - edited 08-18-2011 09:15 PM
08-18-2011 07:49 PM - edited 08-18-2011 09:15 PM
ILO NICs blasting multicast traffic
Has anyone ever experienced ILO NICs saturating their connection with outbound multicast traffic?
Unfortunately, it's going to take a couple of days before I'm in a position to span the switch ports and actually capture some traffic to see what it looks like, but here are the details thus far:
3 Proliant DL380 G7s, all with their ILO NICs on a VLAN dedicated to ILO only. These ILO ports are the only 3 ports enabled on the ILO VLAN at the moment.
Server BIOS and ILO details:
BIOS P67 9/30/2010
ILO3 FW 1.15 (28 Oct 2010)
Switch is a Cisco 2248 (FEX)... brains are Cisco 5020 vPC peers running NX-OS 4.2(1)N1(1)
Switch port config (similar for all 3 server's ILO ports). VLAN 209 is reserved for ILO:
interface Ethernet122/1/10
description transcoder1_ilo
no cdp enable
switchport access vlan 209
spanning-tree port type edge
Connection auto-negotiated to 100/full:
Eth122/1/10 transcoder1_ilo up 209 full 100 --
Port stats show the port is completely hosed by outbound traffic from ILO NIC (~94Mbs):
30 seconds output rate 93335616 bits/sec, 8019 packets/sec
and it's exclusively multicast traffic:
TX
0 unicast packets 9423653 multicast packets 0 broadcast packets
9423653 output packets 13690405417 bytes
I've shut down all of the ILO ports on the VLAN, then brought them back up one at a time to see if this was storm-like behavior (leaving only one ILO port enabled in turn). No difference. Lone ILO NICs continue to barf multicast as fast as they can as soon as their port comes up.
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08-19-2011 01:09 AM
08-19-2011 01:09 AM
Re: ILO NICs blasting multicast traffic
Maybe it could have something to do with the IP settings on the ilo interface?
As far as I could interpret the revisions for ILO FW 1.16 and 1.20 there aren't any mentioning of this:
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=4091412&swItem=MTX-54ee83e1f58f4d348e854342fd&prodNameId=4091432&swEnvOID=1005&swLang=8&taskId=135&mode=5
There were some fixes in the BIOS 2011.01.30 but nothing that mentions this kind of problem.
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=4091412&swItem=MTX-6f110902f85648beacca7ffb2f&prodNameId=4091432&swEnvOID=1005&swLang=8&taskId=135&mode=5
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10-26-2011 02:33 AM
10-26-2011 02:33 AM
Re: ILO NICs blasting multicast traffic
Hello
Yes have also seen this, have you found any solution ?
NB! A workarond that worked for us (have only tested on 1 server) was that after disabled wol - power off - power on - enabled wol again in the bios we havent seen the problem since, i.e. even with wol enabled and power off/on several times we dont see the multicast traffic when server is "off".
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10-26-2011 02:35 AM
10-26-2011 02:35 AM
Re: ILO NICs blasting multicast traffic
NBB ! Forgot the say that the server we tested is a 580.
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10-26-2011 10:18 AM
10-26-2011 10:18 AM
Re: ILO NICs blasting multicast traffic
Guys, can I get a network trace showing the multicast traffic coming from iLO3?
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10-27-2011 12:58 AM
10-27-2011 12:58 AM
Re: ILO NICs blasting multicast traffic
Hi,
Did you try reseting ILO?
Regards,
SF Hussain
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