cciefun ccie/sp fortiOS linux tcl/tk avalanche/reflector canada immi, visit

T1032 Part TestCenter

a, add the command to send the arp


b, ask the port to send the join


c, training traffic.


d, active stream


e, wait the period


f, 2544 pic A


g, 2544 pic B




h, 2544 pic C


igmp leave




PC14---(dw1/1)Blade6(dw1/2)----IPSEC----(dw1/1)Blade8(dw1/2)------PC12
...........RP, join 226.............................join 225

case 1: for group 225 traffic.
-a, no traffic on B6 side, but static join on B8.
user space:
blade6 (falcon) # get router info multicast pim sparse-mode table
IP Multicast Routing Table

(*,*,RP) Entries: 0
(*,G) Entries: 40
(S,G) Entries: 20
(S,G,rpt) Entries: 40
FCR Entries: 0

(*, 225.0.0.1)
RP: 30.0.0.1
RPF nbr: 0.0.0.0
RPF idx: None
Upstream State: JOINED ===>B8 send join message, from to_server
Local:
Joined:
to_server
Asserted:
FCR:

kernel : Nothing

-b, start sending the traffic. B6 kernel get something
grp=225.0.0.1 src=30.0.0.14 intf=13 flags=(0x10000000)[ ] status=resolved
last_assert=1479361 bytes=2140 pkt=5 wrong_if=0 num_ifs=1
index(ttl)=[15(1),]
offload(ttl)=[15(1),] npu_flags=00000001


user space:
(30.0.0.14, 225.0.0.1, rpt)
RP: 30.0.0.1
RPF nbr: 0.0.0.0
RPF idx: None
Upstream State: NOT PRUNED
Local:
Pruned:
Outgoing:
to_server



case 2: for group 226 traffic

-a, no traffic.
no entry in kernel and user space
-b, pc12 start send traffic to 226.0.0.1
B8 encap the multicast traffic into Register message and send to RP (B6). B6 open the packet and forward the traffic to outgoing interface. and then send join message to B8. By then SPT (shortest path tree) established. B8 put to_cam to outgoing interface. B6 then send register_stop to B8 and B8 start sending the multicast directly to B6.