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documentation:examples:ecmp [2020/09/19 17:39] – [VM 2 (ECMP router)] olivierdocumentation:examples:ecmp [2020/09/19 17:48] – [VM 2 (ECMP router)] olivier
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 ====== Equal-cost multi-path routing (ECMP) ====== ====== Equal-cost multi-path routing (ECMP) ======
  
-This lab is testing new ECMP routing code. +This lab is testing new ECMP routing code from [[https://reviews.freebsd.org/D26449|FreeBSD's review D26449]]
 ===== Presentation ===== ===== Presentation =====
  
Line 141: Line 140:
 10.0.56.0/24       10.0.24.4          UGS      vtnet2 10.0.56.0/24       10.0.24.4          UGS      vtnet2
 10.0.56.0/24       10.0.23.3          UGS      vtnet1 10.0.56.0/24       10.0.23.3          UGS      vtnet1
 +
 [root@VM2]~# route -n get 10.0.56.0/24 [root@VM2]~# route -n get 10.0.56.0/24
    route to: 10.0.56.0    route to: 10.0.56.0
Line 177: Line 177:
  recvpipe  sendpipe  ssthresh  rtt,msec    mtu        weight    expire  recvpipe  sendpipe  ssthresh  rtt,msec    mtu        weight    expire
        0         0         0         0      1500         0         0        0         0         0         0      1500         0         0
 +
 +[root@VM2]~# netstat -6onW
 +Nexthop data
 +
 +Internet6:
 +Idx   Type         IFA                           Gateway                        Flags      Use Mtu       Netif   Addrif Refcnt Prepend
 +1       v6/resolve ::1                           lo0/resolve                   H             2  16384      lo0             1
 +2       v6/resolve fe80::1%lo0                   lo0/resolve                   HS            0  16384      lo0             1
 +3       v6/resolve fe80::1%lo0                   lo0/resolve                                 0  16384      lo0             1
 +4            v6/gw ::1                           ::1                           GRS           0  16384      lo0             4
 +5       v6/resolve ::1                           lo0/resolve                   HS            0  16384      lo0  vtnet0     2
 +6       v6/resolve fe80::5a9c:fcff:fe01:202%vtnet0 vtnet0/resolve                            0   1500   vtnet0             1
 +7       v6/resolve 2001:db8:12::2                vtnet0/resolve                              0   1500   vtnet0             1
 +8       v6/resolve ::1                           lo0/resolve                   HS            0  16384      lo0  vtnet1     2
 +9       v6/resolve fe80::5a9c:fcff:fe02:302%vtnet1 vtnet1/resolve                            0   1500   vtnet1             1
 +10      v6/resolve 2001:db8:23::2                vtnet1/resolve                              0   1500   vtnet1             1
 +11      v6/resolve ::1                           lo0/resolve                   HS            0  16384      lo0  vtnet2     2
 +12      v6/resolve fe80::5a9c:fcff:fe02:402%vtnet2 vtnet2/resolve                            0   1500   vtnet2             1
 +13      v6/resolve 2001:db8:24::2                vtnet2/resolve                              0   1500   vtnet2             1
 +14           v6/gw 2001:db8:23::2                2001:db8:23::3                GS            0   1500   vtnet1             2
 +15           v6/gw 2001:db8:24::2                2001:db8:24::4                GS            0   1500   vtnet2             2
 </code> </code>
 ==== VM 3 (router) ==== ==== VM 3 (router) ====
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 | 10.0.12.41 | 10.0.56.46 | VM4 | VM4 | | 10.0.12.41 | 10.0.56.46 | VM4 | VM4 |
 | 10.0.12.51 | 10.0.56.56 | VM4 | VM4 | | 10.0.12.51 | 10.0.56.56 | VM4 | VM4 |
-| 2001:db8:12::1 | 2001:db8:56::6 | error | error | +| 2001:db8:12::1 | 2001:db8:56::6 | VM4 | VM4 | 
-| 2001:db8:12::11 | 2001:db8:56::16 | error | error | +| 2001:db8:12::11 | 2001:db8:56::16 | VM4 | VM4 | 
-| 2001:db8:12::21 | 2001:db8:56::26 | error | error | +| 2001:db8:12::21 | 2001:db8:56::26 | VM4 | VM4 | 
-| 2001:db8:12::31 | 2001:db8:56::36 | error | error | +| 2001:db8:12::31 | 2001:db8:56::36 | VM4 | VM4 | 
-| 2001:db8:12::41 | 2001:db8:56::46 | error | error | +| 2001:db8:12::41 | 2001:db8:56::46 | VM4 | VM4 | 
-| 2001:db8:12::51 | 2001:db8:56::56 | error | error | +| 2001:db8:12::51 | 2001:db8:56::56 | VM4 | VM4 |
- +
- +
-Notice inet6 bug: Cannot ping itself neither neighbor +
-<code> +
-[root@VM1]~# ifconfig vtnet0 inet6 +
-vtnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 +
-        options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE> +
-        inet6 fe80::5a9c:fcff:fe01:201%vtnet0 prefixlen 64 scopeid 0x1 +
-        inet6 2001:db8:12::1 prefixlen 64 +
-        inet6 2001:db8:12::11 prefixlen 64 +
-        inet6 2001:db8:12::21 prefixlen 64 +
-        inet6 2001:db8:12::31 prefixlen 64 +
-        inet6 2001:db8:12::41 prefixlen 64 +
-        inet6 2001:db8:12::51 prefixlen 64 +
-        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> +
-[root@VM1]~# ping6 -c 1 fe80::5a9c:fcff:fe01:201%vtnet0 +
-PING6(56=40+8+8 bytes) fe80::5a9c:fcff:fe01:201%vtnet0 --> fe80::5a9c:fcff:fe01:201%vtnet0 +
- +
---- fe80::5a9c:fcff:fe01:201%vtnet0 ping6 statistics --- +
-1 packets transmitted, 0 packets received, 100.0% packet loss +
-[root@VM1]~# ping6 -c 12001:db8:12::2 +
-ping6: illegal number of packets -- 12001:db8:12::2 +
-[root@VM1]~# ping6 -c 1 2001:db8:12::2 +
-PING6(56=40+8+8 bytes) 2001:db8:12::1 --> 2001:db8:12::2 +
- +
---- 2001:db8:12::2 ping6 statistics --- +
-1 packets transmitted, 0 packets received, 100.0% packet loss +
-</code> +
 ==== Testing Fail Over ==== ==== Testing Fail Over ====
  
documentation/examples/ecmp.txt · Last modified: 2024/03/28 23:19 by olivier
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