[AusNOG] SPAM-LOW: Pipe peering issue - Equinix

Andrew Fort afort at choqolat.org
Mon Nov 14 12:42:56 EST 2011


IXes for years have done mac port filtering to mitigate this issue.
One port, one mac. No tagging. If a port is lit up, it should point to the
issue (if filtered frames hit l2 int counters). A faulty transceiver
spewing a valid source mac?

Is mac filtering not being done there, or is it not working?
On Nov 13, 2011 5:33 PM, "Sean K. Finn" <sean.finn at ozservers.com.au> wrote:

> When a CAM Table is maxed-out a switch becomes a full-duplex hub. (Cool
> hey).****
>
> ** **
>
> If it doesn’t know which mac address to send the traffic to, it sends it
> EVERYWHERE.****
>
> ** **
>
> If the traffic is deliberately being injected into a port knowing that the
> mac address doesn’t exist on the peering fabric, EVERYONE gets it, even if
> the CAM table isn’t full.****
>
> ** **
>
> I’m not on PIPE-IX-SYD, (Only on Equinix-SYD, O Hai) but I can imagine
> that..****
>
> ** **
>
> ** **
>
> *There’s a customer connected to the IX who’s own network has become a
> hub so they are smashing L2 traffic into the IX not on purpose.*
>
> ** **
>
> At least I’d hope that’s the case, I wouldn’t imagine anyone would
> deliberately sabotage the IX.****
>
> ** **
>
> If someone can sniff the packets you may be able to get the MAC address,
> then do an Arping on all of the IX IP’s and see which mac addresses match
> the IP’s in question, or look at your routers ARP table for a corresponding
> MAC address to get the offending networks PEER-IP. (Or look on the graphs
> and see who is inverse to everyone else).****
>
> ** **
>
> ** **
>
> Who has more peers, by the way? Equinix-SYD or PIPE-SYD? ****
>
> ** **
>
> S.****
>
> ** **
>
> *From:* ausnog-bounces at lists.ausnog.net [mailto:
> ausnog-bounces at lists.ausnog.net] *On Behalf Of *ZoneNetworks - Joel
> *Sent:* Sunday, November 13, 2011 9:35 AM
> *To:* Skeeve Stevens
> *Cc:* ausnog at ausnog.net
> *Subject:* Re: [AusNOG] SPAM-LOW: Pipe peering issue - Equinix****
>
> ** **
>
> To my knowledge it's a hardware/firmware issue not traffic related
> ...though looking at the graphs it seems like traffic/flood which is
> misleading****
>
> ** **
>
> If more customers gave them a hard time it might get fixed sooner, we were
> told (in august) they had a long term fix in plan but no ETA when it will
> be done****
>
> Not something you would hear from the "old pipe"****
>
> ** **
>
> Joel****
>
> Sent from my iPad****
>
>
> On 13/11/2011, at 10:06 AM, Skeeve Stevens <Skeeve at eintellego.net> wrote:*
> ***
>
> Do we know where the traffic is coming from?****
>
> ** **
>
> …Skeeve****
>
> ** **
>
> --****
>
> Skeeve Stevens, CEO - eintellego Pty Ltd****
>
> skeeve at eintellego.net ; www.eintellego.net****
>
> Phone: 1300 753 383 ; Fax: (+612) 8572 9954****
>
> Cell +61 (0)414 753 383 ; skype://skeeve****
>
> facebook.com/eintellego****
>
> twitter.com/networkceoau ; www.linkedin.com/in/skeeve****
>
> PO Box 7726, Baulkham Hills, NSW 1755 Australia****
>
> ** **
>
> --****
>
> eintellego - The Experts Who The Experts Call****
>
> Juniper - HP Networking - Cisco - Brocade****
>
> ** **
>
> On 13/11/11 10:04 AM, "Jared Hirst" <jared.hirst at serversaustralia.com.au>
> wrote:****
>
> ** **
>
> Yeah every few weeks it happens is what I mean, they start sending****
>
> hundreds of mbits of useless broadcast traffic to all customers in****
>
> Equinix. It's getting frustrating and annoying as it always seems to****
>
> happen at 2:00on a Saturday morning :(****
>
> ** **
>
> Kindest Regards,****
>
> Jared Hirst****
>
> ** **
>
> Servers Australia Pty Ltd****
>
> ** **
>
> Phone: 02 4307 4200****
>
> Fax: 02 4307 4201****
>
> Web: http://www.serversaustralia.com.au****
>
> ** **
>
> On 13/11/2011, at 4:26 AM, "joel at zonenetworks.com.au"****
>
> <joel at zonenetworks.com.au> wrote:****
>
> ** **
>
> It's been happening for months now not few weeks****
>
> ** **
>
> Last time we were told they need to fix switch/router but they can't do it
> for some reason****
>
> ** **
>
> Sent from my HTC****
>
> ** **
>
> ----- Reply message -----****
>
> From: "Jared Hirst" <jared.hirst at serversaustralia.com.au>****
>
> To: "ausnog at ausnog.net" <ausnog at ausnog.net>****
>
> Subject: SPAM-LOW:  [AusNOG] Pipe peering issue - Equinix****
>
> Date: Sun, Nov 13, 2011 3:30 am****
>
> ** **
>
> ** **
>
> Guys,****
>
> ** **
>
> Just as an FYI there appears to be some form of broadcast storm on the****
>
> pipe peering fabric in Equinix Sydney, looks to be affecting a few****
>
> people and filling links from the looks of their online graphs.****
>
> ** **
>
> We have had to shut our pipe peering down until they resolve it, which****
>
> is my next question... Do pipe have a 24/7 NOC still? I called over 30****
>
> minutes ago and went to a messaging service but have not had a call****
>
> back, have also created a ticket with no response.****
>
> ** **
>
> So if anyone is wondering why their pipe link is full, this is why.****
>
> Appears to be happening every few weeks in Equinix lately.****
>
> ** **
>
> Kindest Regards,****
>
> Jared Hirst****
>
> ** **
>
> Servers Australia Pty Ltd****
>
> ** **
>
> Phone: 02 4307 4200****
>
> Fax: 02 4307 4201****
>
> Web: http://www.serversaustralia.com.au****
>
> _______________________________________________****
>
> AusNOG mailing list****
>
> AusNOG at lists.ausnog.net****
>
> http://lists.ausnog.net/mailman/listinfo/ausnog****
>
> ** **
>
> _______________________________________________****
>
> AusNOG mailing list****
>
> AusNOG at lists.ausnog.net****
>
> http://lists.ausnog.net/mailman/listinfo/ausnog****
>
> ** **
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20111113/3d8ebdb1/attachment.html>


More information about the AusNOG mailing list