Does "show ip mroute count" on the 1841 (RP) display activity on traffic counters?
Is the VLC sender directing multicast to the 1841 (RP) thru a default route? Is the VLC sender issuing multicast packets with a high-enough multicast TTL ? Everton On Wed, May 26, 2010 at 10:21 AM, Rens <r...@autempspourmoi.be> wrote: > I have all those things you mentioned below. > The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 > I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC > and below you have the output of my routers & switches at that time: > > On my RP router I see for show ip mroute: > > (*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41 > > (10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT > Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 > > (*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19 > > (*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03 > > (*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39 > > (*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38 > > (*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40 > > On my other router I have: > > (*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54 > > (10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54 > > (*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56 > > (*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53 > > (*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50 > > (*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48 > > (*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL > Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 > Outgoing interface list: > FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52 > > On the switch where the RP is connected: > > Vlan Group Version Port List > --------------------------------------------------------- > 200 224.0.1.40 v2 Gi2/24 > 200 224.2.127.254 v2 Gi2/24 > 200 239.255.255.255v2 Gi2/24 > > On the switch where the receiver is connected: > > Vlan Group Type Version Port List > ----------------------------------------------------------------------- > 200 224.0.1.40 igmp v2 Gi0/24 > 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 > 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 > 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 > 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 > 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24 > > -----Original Message----- > From: Jamie Sobczyk [mailto:lans...@cox.net] > Sent: vendredi 21 mai 2010 16:52 > To: r...@autempspourmoi.be > Cc: nanog@nanog.org > Subject: RE: IPv4 Multicast > > Make sure you have > "ip multicast-routing" > on both routers. > > On the router interfaces, make sure you have > "ip pim sparse-mode" > > On both routers, make sure you have the same rp address assigned and > that you can ping this ip address from both routers. (I prefer to make > it a loopback interface) > "ip pim rp-address w.x.y.z" > > Also, make sure that routing is setup on your routers so that your > receiver can ping your sender. > > On your routers you should be able to see the source unicast address and > multicast address by typing "show ip mroute" > you should see something like this: > (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S > Incoming interface: Null, RPF nbr 0.0.0.0 > Outgoing interface list: > Port-channel15, Forward/Sparse, 7w0d/00:02:59, H > > (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA > Incoming interface: Port-channel15, RPF nbr 10.7.193.138 > Outgoing interface list: > Port-channel17, Forward/Sparse, 4w5d/00:02:49, H > > On your switches, with igmp snooping enabled, you should be able to > type: > "show ip igmp snooping group" and see something like > Vlan Group Type Version Port List > ----------------------------------------------------------------------- > 24 239.192.3.47 igmp v2 Gi1/0/21 > That port listed is the port of the requester. > > > > > -----Original Message----- > I have setup a lab for this multicast. > > VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender > > The 2 switches only provide L2 access, they have IGMP snooping active > > On both 1841's I have pim parse-mode & sap listen on all interfaces + > configured a static RP, the one closest to the sender. > > With my VLC receiver I can see the channels via SAP, but when I join the > multicast group I don't receive anything. > > Could someone help me to troubleshoot this? > > Thanks in advance, > > Rens > > > >