[mpls-linux-general] My MPLS test-bed

[taufico j. <tau...@ya...>]

my MPLS test bed


 A          B          C          D        E
==1.1---1.2==2.1---2.2==4.2---4.1==5.1--5.2==
           3.1-------------------3.2


linux pc= A,B,C,D, and E
note: B and C consists 3 NICs
      A,C and E consists 2 NICs


Hello...I already try the example from (how to set up
LSP) trough this web page
http://mpls-linux.sourceforge.net/simple.php . Thus
the set up was successful  between A and B (please
refer to my test bed above). I also tried to set up
LSP between  B and A ..and it also was succesful.
  
 My questions are:
  
  
  1) I got confius when I want to set up LSP between A
and C, also between B and D. How the set up will be?
How to set up the ip route between them ?
  
 2) This test-bed intended to transmit MPLS packet
from A to E. The packet has two choices, either go
through (A)1.1 --1.2--2.1--2.2--4.2--4.1--5.1--5.2(E)
or (A)1.1--1.2--3.1--3.2--5.1--5.2(E). How?
  
 3) From your example given :
  
 uml1
 ----
 [root@uml1 root]# cat /sys/mpls/version
 1.946
 [root@uml1 root]# mpls nhlfe add key 0
 Key: 0x00000002
 [root@uml1 root]# mpls nhlfe change key 0x2
instructions push gen 10000 nexthop eth1 ipv4
11.0.1.2
 [root@uml1 root]# ip route add 11.0.1.2/32 via
11.0.1.2 spec_nh 0x8847 0x2
 [root@uml1 root]# mpls nhlfe show
 NHLFE entry key 0x00000002 mtu 1496 propagate_ttl
         push gen 10000 set eth1 ipv4 11.0.1.2  (0
bytes, 0 pkts, 0 dropped)
 [root@uml1 root]# ip route show
 11.0.1.2 via 11.0.1.2 dev eth1 spec_nh 0x8847 0x2
 192.168.2.0/24 dev eth0  scope link
 11.0.1.0/24 dev eth1  proto kernel  scope link  src
11.0.1.1
 127.0.0.0/8 dev lo  scope link
 [root@uml1 root]#
 
  
 3i) What is the meaning of 
  
    "add key 0"
    "key 0x2"
    "spec_nh 0x8847 0x2"
  
 From your example I know the packet is labeled with
10000. Is this label is fix ?  Can I use other label
value?
  
 Can somebody help me..my project is nearly success...

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