Hi here is a packet capture of an occurrence.. This packet capture is in the netns of the qrouter....
[root@overcloud-controller-1 ~]# ip netns ls qdhcp-8897a5a6-dd5e-44d3-852f-c0dcd870b228 qdhcp-9b61e335-1b6c-498f-82b4-f660180e6876 qdhcp-ec0bad75-3466-43fb-b240-2b7d53a1d2c7 qdhcp-f76fcc81-0b57-4258-9e1a-04aa0c786428 qdhcp-b918b2ce-ef92-444d-80a0-9bf1f93406f3 qdhcp-3e184953-6df2-45c0-a0d4-7ca837110740 qdhcp-06c553c8-0adb-4b95-b2c4-4dc163f95a4f qdhcp-184592ea-da08-4180-a9cb-a660125e5d1a qrouter-b65e3bdc-390e-48b7-9cd9-fca429dafb45 [root@overcloud-controller-1 ~]# ip netns exec qrouter-b65e3bdc-390e-48b7-9cd9-fca429dafb45 ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 31: ha-bce4b526-c4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1446 qdisc noqueue state UNKNOWN qlen 1000 link/ether fa:16:3e:2d:1c:2c brd ff:ff:ff:ff:ff:ff inet 169.254.192.2/18 brd 169.254.255.255 scope global ha-bce4b526-c4 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe2d:1c2c/64 scope link valid_lft forever preferred_lft forever 32: qr-1656d4d1-2c: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1446 qdisc noqueue state UNKNOWN qlen 1000 link/ether fa:16:3e:54:77:0b brd ff:ff:ff:ff:ff:ff 33: qg-3f327e61-8b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1496 qdisc noqueue state UNKNOWN qlen 1000 link/ether fa:16:3e:a7:ae:63 brd ff:ff:ff:ff:ff:ff [root@overcloud-controller-1 ~]# ip netns exec qrouter-b65e3bdc-390e-48b7-9cd9-fca429dafb45 bash [root@overcloud-controller-1 ~]# tcpdump -nnvv -e -i qg-3f327e61-8b tcpdump: WARNING: qg-3f327e61-8b: no IPv4 address assigned tcpdump: listening on qg-3f327e61-8b, link-type EN10MB (Ethernet), capture size 65535 bytes 14:24:09.814889 08:81:f4:a6:dc:01 > 01:00:5e:00:00:01, ethertype IPv4 (0x0800), length 60: (tos 0xc0, ttl 1, id 30720, offset 0, flags [none], proto IGMP (2), length 32, options (RA)) 10.19.108.254 > 224.0.0.1: igmp query v2 14:24:13.799395 08:81:f4:a6:dc:01 > 33:33:00:00:00:0d, ethertype IPv6 (0x86dd), length 110: (class 0xc0, hlim 1, next-header PIM (103) payload length: 56) fe80:52:0:136c::fe > ff02::d: PIMv2, length 56 Hello, cksum 0x018f (correct) Hold Time Option (1), length 2, Value: 1m45s 0x0000: 0069 LAN Prune Delay Option (2), length 4, Value: T-bit=1, LAN delay 500ms, Override interval 2000ms 0x0000: 81f4 07d0 DR Priority Option (19), length 4, Value: 1 0x0000: 0000 0001 Address List Option (24), length 18, Value: 2620:52:0:136c::fe 0x0000: 0200 2620 0052 0000 136c 0000 0000 0000 0x0010: 00fe Generation ID Option (20), length 4, Value: 0x00ec032c 0x0000: 00ec 032c 14:24:21.481044 08:81:f4:a6:dc:01 > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 86: (hlim 1, next-header Options (0) payload length: 32) fe80:52:0:136c::fe > ff02::1: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener querymax resp delay: 10000 addr: :: 14:24:28.241400 fa:16:3e:ba:6f:6f > 33:33:ff:ba:6f:6f, ethertype IPv6 (0x86dd), length 86: (hlim 1, next-header Options (0) payload length: 32) fe80::f816:3eff:feba:6f6f > ff02::1:ffba:6f6f: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener reportmax resp delay: 0 addr: ff02::1:ffba:6f6f 14:24:38.883558 08:81:f4:a6:dc:01 > 01:00:5e:00:00:0d, ethertype IPv4 (0x0800), length 68: (tos 0xc0, ttl 1, id 52817, offset 0, flags [none], proto PIM (103), length 54) 10.19.108.254 > 224.0.0.13: PIMv2, length 34 Hello, cksum 0x4fa8 (correct) Hold Time Option (1), length 2, Value: 1m45s 0x0000: 0069 LAN Prune Delay Option (2), length 4, Value: T-bit=1, LAN delay 500ms, Override interval 2000ms 0x0000: 81f4 07d0 DR Priority Option (19), length 4, Value: 1 0x0000: 0000 0001 Generation ID Option (20), length 4, Value: 0x7c75897b 0x0000: 7c75 897b
Hi here is a packet capture of an occurrence..
This packet capture is in the netns of the qrouter....
[root@overcloud -controller- 1 ~]# ip netns ls dd5e-44d3- 852f-c0dcd870b2 28 1b6c-498f- 82b4-f660180e68 76 3466-43fb- b240-2b7d53a1d2 c7 0b57-4258- 9e1a-04aa0c7864 28 ef92-444d- 80a0-9bf1f93406 f3 6df2-45c0- a0d4-7ca8371107 40 0adb-4b95- b2c4-4dc163f95a 4f da08-4180- a9cb-a660125e5d 1a b65e3bdc- 390e-48b7- 9cd9-fca429dafb 45 -controller- 1 ~]# ip netns exec qrouter- b65e3bdc- 390e-48b7- 9cd9-fca429dafb 45 ip a UP,LOWER_ UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 MULTICAST, UP,LOWER_ UP> mtu 1446 qdisc noqueue state UNKNOWN qlen 1000 3eff:fe2d: 1c2c/64 scope link MULTICAST, UP,LOWER_ UP> mtu 1446 qdisc noqueue state UNKNOWN qlen 1000 MULTICAST, UP,LOWER_ UP> mtu 1496 qdisc noqueue state UNKNOWN qlen 1000 -controller- 1 ~]# ip netns exec qrouter- b65e3bdc- 390e-48b7- 9cd9-fca429dafb 45 bash -controller- 1 ~]# tcpdump -nnvv -e -i qg-3f327e61-8b 52:0:136c: :fe 3eff:feba: 6f6f > ff02::1:ffba:6f6f: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener reportmax resp delay: 0 addr: ff02::1:ffba:6f6f
qdhcp-8897a5a6-
qdhcp-9b61e335-
qdhcp-ec0bad75-
qdhcp-f76fcc81-
qdhcp-b918b2ce-
qdhcp-3e184953-
qdhcp-06c553c8-
qdhcp-184592ea-
qrouter-
[root@overcloud
1: lo: <LOOPBACK,
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
31: ha-bce4b526-c4: <BROADCAST,
link/ether fa:16:3e:2d:1c:2c brd ff:ff:ff:ff:ff:ff
inet 169.254.192.2/18 brd 169.254.255.255 scope global ha-bce4b526-c4
valid_lft forever preferred_lft forever
inet6 fe80::f816:
valid_lft forever preferred_lft forever
32: qr-1656d4d1-2c: <BROADCAST,
link/ether fa:16:3e:54:77:0b brd ff:ff:ff:ff:ff:ff
33: qg-3f327e61-8b: <BROADCAST,
link/ether fa:16:3e:a7:ae:63 brd ff:ff:ff:ff:ff:ff
[root@overcloud
[root@overcloud
tcpdump: WARNING: qg-3f327e61-8b: no IPv4 address assigned
tcpdump: listening on qg-3f327e61-8b, link-type EN10MB (Ethernet), capture size 65535 bytes
14:24:09.814889 08:81:f4:a6:dc:01 > 01:00:5e:00:00:01, ethertype IPv4 (0x0800), length 60: (tos 0xc0, ttl 1, id 30720, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
10.19.108.254 > 224.0.0.1: igmp query v2
14:24:13.799395 08:81:f4:a6:dc:01 > 33:33:00:00:00:0d, ethertype IPv6 (0x86dd), length 110: (class 0xc0, hlim 1, next-header PIM (103) payload length: 56) fe80:52:0:136c::fe > ff02::d: PIMv2, length 56
Hello, cksum 0x018f (correct)
Hold Time Option (1), length 2, Value: 1m45s
0x0000: 0069
LAN Prune Delay Option (2), length 4, Value:
T-bit=1, LAN delay 500ms, Override interval 2000ms
0x0000: 81f4 07d0
DR Priority Option (19), length 4, Value: 1
0x0000: 0000 0001
Address List Option (24), length 18, Value:
2620:
0x0000: 0200 2620 0052 0000 136c 0000 0000 0000
0x0010: 00fe
Generation ID Option (20), length 4, Value: 0x00ec032c
0x0000: 00ec 032c
14:24:21.481044 08:81:f4:a6:dc:01 > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 86: (hlim 1, next-header Options (0) payload length: 32) fe80:52:0:136c::fe > ff02::1: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener querymax resp delay: 10000 addr: ::
14:24:28.241400 fa:16:3e:ba:6f:6f > 33:33:ff:ba:6f:6f, ethertype IPv6 (0x86dd), length 86: (hlim 1, next-header Options (0) payload length: 32) fe80::f816:
14:24:38.883558 08:81:f4:a6:dc:01 > 01:00:5e:00:00:0d, ethertype IPv4 (0x0800), length 68: (tos 0xc0, ttl 1, id 52817, offset 0, flags [none], proto PIM (103), length 54)
10.19.108.254 > 224.0.0.13: PIMv2, length 34
Hello, cksum 0x4fa8 (correct)
Hold Time Option (1), length 2, Value: 1m45s
0x0000: 0069
LAN Prune Delay Option (2), length 4, Value:
T-bit=1, LAN delay 500ms, Override interval 2000ms
0x0000: 81f4 07d0
DR Priority Option (19), length 4, Value: 1
0x0000: 0000 0001
Generation ID Option (20), length 4, Value: 0x7c75897b
0x0000: 7c75 897b