Last Update : February 26, 2000
This scenario verifies interoperability when the target ROUTER is attached to the model network.
Verification that a router treat the BGP4+.
Verification Points:
Router sends packets via shortest route, which is calculated from AS path, for the destination address.
HOST-2 (Net-w) (Prefix 3ffe:501:481d:f006::/64) | AS 3000 / ----+--+------ / / | / / (I/F-3w)| / AS3000 /////////// ROUTER-3 /////// (I/F-3x)| |(I/F-3v) | | (Net-x) (Prefix 3ffe:501:481d:f005::/64)--+---------+- | | | |(I/F-2x) | AS2000 -> ROUTER-2 -+-+-- (Net-v) |(I/F-2y) | | | (Net-y) (Prefix 3ffe:501:481d:f004::/64) -+---------+- | | | (I/F-1y)| |(I/F-1v) AS1000 /////////// ROUTER-1 ///////// / (I/F-1z)| / / | / (Net-z) (Prefix 3ffe:501:481d:f002::/64) ------+---+------ / AS 1000 | HOST-1 (Net-v) (Prefix 3ffe:501:481d:f007::/64)"///" : AS boundary
Network Prefix Network media Net-v 3ffe:501:481d:f007::/64 Ethernet 10BASE-T Net-w 3ffe:501:481d:f006::/64 Ethernet 10BASE-T Net-x 3ffe:501:481d:f005::/64 Ethernet 10BASE-T Net-y 3ffe:501:481d:f004::/64 Ethernet 10BASE-T Net-z 3ffe:501:481d:f002::/64 Ethernet 10BASE-T
Machine Comments Initial status Configuration HOST-2 Reference Machine is attached to Net-w with power turned off. - ROUTER-3 Reference Machine Power is turned off. I/F-3x is attached to Net-x while I/F-3w is attached to Net-w and I/F-3v is attached to Net-v. AS number is 3000.
EBGP peer is AS 1000 and 2000.
Sends route of link attached I/F-3w to AS 1000 and 2000.
Doesn't send routing information that AS 1000 advertised to AS 2000.
Doesn't send routing information that AS 2000 advertised to AS 1000.
Sends RA to Net-x, Net-w and Net-v.
Doesn't send and receive RIPng.ROUTER-2 Target Machine Power is turned off. I/F-2y is attached to Net-y while I/F-2x is attached to Net-x. AS number is 2000.
EBGP peer is AS 1000 and 3000.
Sends routing information that AS 1000 and 3000 advertised to AS 3000 and 1000.
Sends RA to Net-x and Net-y.
Doesn't send and receive RIPng.ROUTER-1 Reference Machine Power is turned off. I/F-1z is attached to Net-z while I/F-1y is attached to Net-y and I/F-1v is attached to Net-v. AS number is 1000.
EBGP peer is AS 2000 and 3000.
Sends route of link attached to I/F-1z to AS 2000 and 3000.
Doesn't send routing information that AS 2000 advertised to AS 3000.
Doesn't send routing information that AS 3000 advertised to AS 2000.
Sends RA to Net-z, Net-y and Net-v.
Doesn't send and receive RIPng.HOST-1 Reference Machine is attached to Net-z with power turned off. -
UDP, ICMP
traceroute program (traceroute)
No Action Criteria Comments 1 Boot HOST-1. - - 2 Boot HOST-2. - - 3 Boot ROUTER-1. - - 4 Boot ROUTER-2. - - 5 Boot ROUTER-3. - Check the routing table of Router-1.
Now ROUTER-1,2,3 learn the path between Net-z and Net-w.Reachability Check. 6 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-3 -> HOST-2- 7 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- AS3000 controls incoming route using "PREPEND". 8 At ROUTER-3, prepend its AS number twice to the AS path advertising to ROUTER-1
(prepend 2).- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.9 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 10 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- 11 At ROUTER-3, prepend its AS number twice to the AS path advertising to ROUTER-2
(prepend 2).- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.12 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-3 -> HOST-2- 13 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- 14 At ROUTER-3, remove prepend its AS number from the AS path advertising to ROUTER-2
(remove prepend 2)- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.15 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 16 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- AS2000 controls incoming route using "PREPEND". 17 At ROUTER-2, prepend its AS number twice to the AS path advertising to ROUTER-1
(prepend 2).- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.18 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-3 -> HOST-2- 19 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- 20 At ROUTER-2, remove prepend its AS number from the AS path advertising to ROUTER-1
(remove prepend 2).- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.21 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 22 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- At both directions, change route of AS1000 (preparation after action 31). 23 At ROUTER-3, configure the value of local preference with 100 for all route advertised from ROUTER-1. - - 24 At ROUTER-3, configure the value of local preference with 200 for all route advertised from ROUTER-2. - Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.At both directions, route of AS1000 becomes via ROUTER-2 (preparation after action 32). 25 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 26 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-2 -> ROUTER-1 -> HOST-1- At both directions, route of AS1000 becomes via ROUTER-1 (I/F-1v). 27 Pull off the ROUTER-2's (I/F-2y) cable from HUB. - - 28 Wait 4 minutes (adjustable by HOLDITME value). - Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.29 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-3 -> HOST-2- 30 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- At both directions, route of AS1000 becomes via ROUTER-2. 31 Put in the ROUTER-2's (I/F-2y) cable to HUB. - - 32 Wait 2 minutes (adjustable by HOLDITME value). - Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.33 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 34 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-2 -> ROUTER-1 -> HOST-1- At both directions, change route of AS1000 (preparation after action 45). 35 At ROUTER-1,
set "local preference =200" for all routes advertised from ROUTER-3.- - 36 At ROUTER-1,
set "local preference =100" for all routes advertised from ROUTER-2.- - 37 At ROUTER-3,
set "local preference =200" for all routes advertised from ROUTER-1.- - 38 At ROUTER-3,
set "local preference =100" for all routes advertised from ROUTER-2.- Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.At both directions, route of AS1000 becomes via ROUTER-1 (I/F-1v) (preparation after action 45). 39 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> HOST-2- 40 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- At both directions, route of AS1000 becomes via ROUTER-2. 41 Pull off the ROUTER-1's (I/F-1v) cable from HUB. - - 42 Wait 4 minutes (adjustable by HOLDITME value). - Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.43 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> HOST-2- 44 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-2 -> ROUTER-1 -> HOST-1- At both directions, route of AS1000 becomes via ROUTER-1 (I/F-1v). 45 Put in the cable of ROUTER-1 (I/F-1v) in HUB. - - 46 Wait 2 minutes (adjustable by HOLDITME value). - Check the BGP4+ information and routing information of every router.
Check AS path and next hop address.47 At HOST-1, run "traceroute" to HOST-2's global address. *Complete traceroute
*ROUTER-1 -> ROUTER-3 -> HOST-2- 48 At HOST-2, run "traceroute" to HOST-1's global address. *Complete traceroute
*ROUTER-3 -> ROUTER-1 -> HOST-1- Mark"*"with no number means that we are going to judge that subject.