[mirror_frr.git] / pimd / LINUX_KERNEL_MROUTE_MFC

#
# The Linux Kernel MFC (Multicast Forwarding Cache)
#

# Check Linux kernel multicast interfaces:
cat /proc/net/dev_mcast

# Check that interface eth0 is forwarding multicast:
cat /proc/sys/net/ipv4/conf/eth0/mc_forwarding

# Check Linux kernel multicast VIFs:
cat /proc/net/ip_mr_vif
Interface      BytesIn  PktsIn  BytesOut PktsOut Flags Local    Remote

# Check Linux kernel MFC:
# Oifs format = vifi:TTL
cat /proc/net/ip_mr_cache
Group    Origin   Iif     Pkts    Bytes    Wrong Oifs

# iproute2 can display the MFC:
ip mroute show
(2.2.2.2, 239.2.2.2)             Iif: eth1       Oifs: eth0

# -- end-of-file --
Commit	Line	Data
12e41d03 DL	1	#
	2	# The Linux Kernel MFC (Multicast Forwarding Cache)
	3	#
	4
	5	# Check Linux kernel multicast interfaces:
	6	cat /proc/net/dev_mcast
	7
	8	# Check that interface eth0 is forwarding multicast:
	9	cat /proc/sys/net/ipv4/conf/eth0/mc_forwarding
	10
	11	# Check Linux kernel multicast VIFs:
	12	cat /proc/net/ip_mr_vif
	13	Interface BytesIn PktsIn BytesOut PktsOut Flags Local Remote
	14
	15	# Check Linux kernel MFC:
	16	# Oifs format = vifi:TTL
	17	cat /proc/net/ip_mr_cache
	18	Group Origin Iif Pkts Bytes Wrong Oifs
	19
	20	# iproute2 can display the MFC:
	21	ip mroute show
	22	(2.2.2.2, 239.2.2.2) Iif: eth1 Oifs: eth0
	23
	24	# -- end-of-file --