HP B2355-92068 Administration Manual page 620

mrouted(1M)
The cache tables look like this:
Multicast Routing Cache Table (147 entries)
Origin
13.2.116/22
>13.2.116.19
>13.2.116.196
138.96.48/21
>138.96.48.108
128.9.160/20
>128.9.160.45
198.106.194/24
>198.106.194.22
Each entry is characterized by the origin subnet number, mask, and the destination multicast group. The
CTmr field indicates the lifetime of the entry. The entry is deleted from the cache table when the timer
decrements to zero. The Age field is the time since this cache entry was originally created. Since cache
entries get refreshed if traffic is flowing, routing entries can grow very old. The Ptmr field is simply a dash
if no prune was sent upstream, or the amount of time until the upstream prune will time out. The Ivif
field indicates the incoming vif for multicast packets from that origin. Each router also maintains a record
of the number of prunes received from neighboring routers for a particular source and group. If there are
no members of a multicast group on any downward link of the multicast tree for a subnet, a prune message
is sent to the upstream router. They are indicated by a
the interfaces along which datagrams belonging to the source-group are forwarded. A
datagrams are being forwarded along that interface. An unlisted interface is a leaf subnet with no members
of the particular group on that subnet. A
traffic will not be forwarded on the scoped address on that interface. An additional line with a
character is printed for each source on the subnet. Note that there can be many sources in one subnet.
m AUTHORS
Steve Deering, Ajit Thyagarajan, Bill Fenner.
FILES
/etc/mrouted.conf
/var/run/mrouted.pid
/var/tmp/mrouted.dump
/var/tmp/mrouted.cache
SEE ALSO
mrinfo(1M), map-mbone(1M).
DVMRP is described, along with other multicast routing algorithms, in the paper "Multicast Routing in
Internetworks and Extended LANs" by S. Deering, in the Proceedings of the ACM SIGCOMM '88 Confer-
ence.
620 Hewlett-Packard Company
Mcast-group CTmr
224.2.127.255 3m
224.2.127.255 5m
224.2.127.255 3m
224.2.135.190 9m
after the vif number. The Forwvifs field shows
P
on an interface indicates that it is a boundary interface; that is,
b
− 5 −
Age Ptmr IVif Forwvifs
2m - 0 1
2m - 0 1
2m - 0 1
28s 9m 0P
HP-UX 11i Version 2: December 2007 Update
mrouted(1M)
indicates that no
p
as the first
>