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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Multicast cpu-protection and snooping is not possible at the same time.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Have you configured both multicast passive and multicast pimsm-snooping under the vlan configuration for vlan 720?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US">multicast passive<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US">multicast pimsm-snooping<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US">/Jan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> foundry-nsp [mailto:foundry-nsp-bounces@puck.nether.net]
<b>On Behalf Of </b>Eldon Koyle<br>
<b>Sent:</b> 30. marts 2016 06:33<br>
<b>Cc:</b> foundry-nsp <foundry-nsp@puck.nether.net><br>
<b>Subject:</b> Re: [f-nsp] Multicast is being switched by LP CPU on MLXe?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p>I remember having a lot of trouble with multicast. I don't have the docs handy, but I think there are some multicast cpu-protection commands you could try.<o:p></o:p></p>
<p>-- <br>
Eldon Koyle<o:p></o:p></p>
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<p class="MsoNormal">On Mar 29, 2016 9:21 PM, "Eldon Koyle" <<a href="mailto:ekoyle@gmail.com">ekoyle@gmail.com</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<p>I remember having a lot of trouble with multicast. I don't have the docs handy, but I think there are some multicast cpu-protection commands you could try.<o:p></o:p></p>
<p>-- <br>
Eldon Koyle<o:p></o:p></p>
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<p class="MsoNormal">On Mar 29, 2016 6:20 AM, "Alexander Shikoff" <<a href="mailto:minotaur@crete.org.ua" target="_blank">minotaur@crete.org.ua</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello!<br>
<br>
I have some VLANs configured between certain ports on MLXe box (MLXe-16, 5.7.0e).<br>
All ports are in 'no route-only' mode. For example:<br>
<br>
<a href="mailto:telnet@lsr1-gdr.ki" target="_blank">telnet@lsr1-gdr.ki</a>(config)#show vlan 720<br>
<br>
PORT-VLAN 720, Name V720, Priority Level 0, Priority Force 0, Creation Type STATIC<br>
Topo HW idx : 65535 Topo SW idx: 257 Topo next vlan: 0<br>
L2 protocols : NONE<br>
Statically tagged Ports : ethe 7/1 ethe 9/5 ethe 10/6 ethe 11/6 ethe 13/3<br>
Associated Virtual Interface Id: NONE<br>
----------------------------------------------------------<br>
Port Type Tag-Mode Protocol State<br>
7/1 TRUNK TAGGED NONE FORWARDING<br>
9/5 TRUNK TAGGED NONE FORWARDING<br>
10/6 TRUNK TAGGED NONE FORWARDING<br>
11/6 TRUNK TAGGED NONE FORWARDING<br>
13/3 PHYSICAL TAGGED NONE FORWARDING<br>
Arp Inspection: 0<br>
DHCP Snooping: 0<br>
IPv4 Multicast Snooping: Enabled - Passive<br>
IPv6 Multicast Snooping: Disabled<br>
<br>
No Virtual Interfaces configured for this vlan<br>
<br>
<br>
<br>
As you may notice, passive multicast snooping is enabled on that VLAN.<br>
The problem is that multicast traffic is being switched by LP CPU,<br>
causing high CPU utilization and packet loss.<br>
<br>
It is clearly seen on rconsole:<br>
<br>
LP-11#debug packet capture rx include src-port me/6 vlan-id 720 dst-address 233.191.133.96<br>
[...]<br>
**********************************************************************<br>
[ppcr_tx_packet] ACTION: Forward packet using fid 0xa06d<br>
[ppcr_rx_packet]: Packet received<br>
Time stamp : 56 day(s) 20h 48m 05s:,<br>
TM Header: [ 0564 0aa3 0080 ]<br>
Type: Fabric Unicast(0x00000000) Size: 1380 Class: 0 Src sys port: 2723<br>
Dest Port: 0 Drop Prec: 2 Ing Q Sig: 0 Out mirr dis: 0x0 Excl src: 0 Sys mc: 0<br>
**********************************************************************<br>
Packet size: 1374, XPP reason code: 0x000095cc<br>
00: 05f0 0003 5c50 02d0-7941 fffe 8000 0000 FID = 0x05f0<br>
10: 0100 5e3f 85b0 e4d3-f17d a7c5 0800 4516 Offset = 0x10<br>
20: 0540 0000 4000 7e11-f89f b060 df26 e9bf VLAN = 720(0x02d0)<br>
30: 85b0 04d2 04d2 052c-0000 4701 3717 8134 CAM = 0x0ffff(R)<br>
40: 01d0 92de c56f 18f6-dc4f 8d00 1273 cdb3 SFLOW = 0<br>
50: c3ff 3da8 2600 5a37-cfbe 993f dbfd c927 DBL TAG = 0<br>
60: 8000 8290 ef9b 7638-9089 9a50 5000 8611<br>
70: 2026 0079 8de2 a404-1013 dffd 04e0 1404<br>
Pri CPU MON SRC PType US BRD DAV SAV DPV SV ER TXA SAS Tag MVID<br>
0 0 0 11/6 3 0 1 0 1 1 1 0 0 0 1 0<br>
<br>
176.96.223.38 -> 233.191.133.176 UDP [1234 -> 1234]<br>
**********************************************************************<br>
<br>
As far as I understand documentation that should not happen.<br>
The situation remains the same if I disable IGMP snooping.<br>
<br>
Any ideas/suggestions is kindly appreciated!<br>
<br>
Thanks in advance.<br>
<br>
--<br>
MINO-RIPE<br>
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