search for: multicast_querier

...tin Rushton <martinrushton56 at btinternet.com>: >> >> When I start corosync each node starts up but does not see the others. > > for multicast mode; did you tried to set [1] on the main host (not VMs)? > > [1] echo 1 > /sys/class/net/${yourbridgeinterface}/bridge/multicast_querier > > -- > LF I hadn't, so I've just tried but with no success. Thanks for the suggestion though. Martin -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: OpenPGP digital signat...

...e/br_device.c index 69363bd..89659d4 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -71,7 +71,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) mdst = br_mdb_get(br, skb, vid); if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && - br_multicast_querier_exists(br)) + br_multicast_querier_exists(br, eth_hdr(skb))) br_multicast_deliver(mdst, skb); else br_flood_deliver(br, skb, false); diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 8c561c0..a2fd37e 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -1...

...nother host (192.168.0.110). I also start an instance of tshark on > each host to check which packets are being sent across. The multicast > packets are seen by tshark to be crossing the bridge but for some > reason the receiver app does not receive them. The bridges also have > the multicast_querier and multicast_snooping flags enabled (e.g. for > br1 on both hosts): > > [root@clusterdev01 ~]# cat /sys/class/net/br1/bridge/multicast_querier > 1 > [root@clusterdev01 ~]# cat /sys/class/net/br1/bridge/multicast_snooping > 1 > [root@clusterdev02 ~]# cat /sys/class/net/br1/bri...

Hi Laine What you have suggested sounds eminently reasonable. Thanks for your advice. I'm going to give it a shot and report back. Richard On 11/27/19 1:38 PM, Laine Stump wrote: > On 11/26/19 11:07 PM, Richard Achmatowicz wrote: >> Hello >> >> I have a problem with attaching VMs to a VLAN interface. >> >> Here is my setup: I have several physical hosts

...sender on br1 on another host (192.168.0.110). I also start an instance of tshark on each host to check which packets are being sent across. The multicast packets are seen by tshark to be crossing the bridge but for some reason the receiver app does not receive them. The bridges also have the multicast_querier and multicast_snooping flags enabled (e.g. for br1 on both hosts): [root@clusterdev01 ~]# cat /sys/class/net/br1/bridge/multicast_querier 1 [root@clusterdev01 ~]# cat /sys/class/net/br1/bridge/multicast_snooping 1 [root@clusterdev02 ~]# cat /sys/class/net/br1/bridge/multicast_querier 1 [root@clus...

...f digging I seem to have found the cause of the issue but I'm not sure what the proper fix is. The cause seems to be a kernel "regression": https://bugzilla.redhat.com/show_bug.cgi?id=880035#c56 It seems that multicast now requires explicitly setting /sys/class/<bridge>/bridge/multicast_querier to 1. What is puzzling about this is that im wonder why this behavior changeing patch was included in the RHEL/CentOS kernel. This is the first time I ever ran into this kind of problem and previously multicast seemed to work just out of the box. The other issue is that I'm not sure how to ma...

I've been trying to build a model cluster using three virtual machines on my home server. Each VM boots off its own dedicated partition (CentOS 7.3). One partition is designated to be the common /home partition for the VMs, (on the real machine it will mount as /cluster). I'm intending to run GFS2 on the shared partition, so I need to configure DLM and corosync. That's where I'm

...2017 um 17:33 schrieb J Martin Rushton <martinrushton56 at btinternet.com>: > > When I start corosync each node starts up but does not see the others. for multicast mode; did you tried to set [1] on the main host (not VMs)? [1] echo 1 > /sys/class/net/${yourbridgeinterface}/bridge/multicast_querier -- LF

Hi, today a couple of Hypervisors got restarted due to a power outage. While the systems and the VMs on the are running fine multicast traffic between the guests is no longer working. I generate multicast udp packet using iperf in the guest and check on the host using tcpdump: tcpdump vnet0 => multicast packets are visible tcpdump vlanbr8 => multicast packets are visible tcpdump em1.8