Hey,
I'm struggling to understand about below multicast show commands. but, some are not in my mind yet. Can someone eraborate if my comment is correct or not?
Router# show ip mroute summary
IP Multicast Routing Table
Flags:D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C -
Connected, L - Local, P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set, J -
Join SPT, M - MSDP created entry, X - Proxy Join Timer Running, A - Advertised via MSDP, U
- URD, I - Received Source Specific Host Report
Outgoing interface flags:H - Hardware switched
Timers:Uptime/Expires
Interface state:Interface, Next-Hop or VCD, State/Mode
(*, 224.255.255.255), 2d16h/00:02:30, RP 171.69.10.13, flags: SJPC
(*, 224.2.127.253), 00:58:18/00:02:00, RP 171.69.10.13, flags: SJC
(*, 224.1.127.255), 00:58:21/00:02:03, RP 171.69.10.13, flags: SJC
>>> I understanded that there were no available source yet. so, It is still showing as (*.G), is it correct?
(*, 224.2.127.254), 2d16h/00:00:00, RP 171.69.10.13, flags: SJCL
(128.9.160.67/32, 224.2.127.254), 00:02:46/00:00:12, flags: CLJT
(129.48.244.217/32, 224.2.127.254), 00:02:15/00:00:40, flags: CLJT
(130.207.8.33/32, 224.2.127.254), 00:00:25/00:02:32, flags: CLJT
(131.243.2.62/32, 224.2.127.254), 00:00:51/00:02:03, flags: CLJT
(140.173.8.3/32, 224.2.127.254), 00:00:26/00:02:33, flags: CLJT
(171.69.60.189/32, 224.2.127.254), 00:03:47/00:00:46, flags: CLJT
>>> according to above, various source IP addresses(sender) are transmitting the multicast traffic with single multicast group. my understanding is correct? if so, I don't understand why many source IPs are populated. I thoughted one source should be equaled to one multicast IP.
Pls, clarify me if I'm wrong. for example, 128.9.160.67 is client IP or not, source IP(traffic sender) ?
The following is sample output from the show ip mroute command with the active keyword:
Router# show ip mroute active
Active IP Multicast Sources - sending >= 4 kbps
Group: 224.2.127.254, (sdr.cisco.com)
Source: 146.137.28.69 (mbone.ipd.anl.gov)
Rate: 1 pps/4 kbps(1sec), 4 kbps(last 1 secs), 4 kbps(life avg)
Group: 224.2.201.241, ACM 97
Source: 130.129.52.160 (webcast3-e1.acm97.interop.net)
Rate: 9 pps/93 kbps(1sec), 145 kbps(last 20 secs), 85 kbps(life avg)
Group: 224.2.207.215, ACM 97
Source: 130.129.52.160 (webcast3-e1.acm97.interop.net)
Rate: 3 pps/31 kbps(1sec), 63 kbps(last 19 secs), 65 kbps(life avg)
