Combination of EBGP and IBGP speakers

[Interoperability Test Scenario]

Last Update: June 9, 2000

This scenario verifies interoperability when the target ROUTER is attached to the model network.

Subjects:

 IBGP speakers can't export a routing information learned from other IBGP speakers. 
Therefore, to learn all routing information must connect each IBGP speaker "Full Mesh"
or use the "Route Reflector". 
 So configure one IBGP speaker as "Route Reflector*" and others as "Client" and check 
their action. 

* Route Reflector:
Route Reflector can export a routing information from other IBGP speakers to Clients.

Verification Points :
- IBGP speakers as Client learn disconnected peer's routing information.
- Exchange of a routing information from EBGP and IBGP between EBGP speakers.

Physical Network Configuration:

            /       HOST-2          / /    HOST-3                 /
            /         |             / /      |                    /
    (Net-u) /     ----+---+----     / /    --+--+--------         /  (Net-t)
            /             |         / /         |                 /
            /    (I/F5-u) | AS 3000 / /(I/F5-t) |      AS 4000    /
            ////////// ROUTER-5 ///// ////// ROUTER-6 /////////////
                 (I/F5-w) |            (I/F5-v) |
                          |                     |
      (Net-w)   -------+--+----            -----+--+-------  (Net-v)
                       |                           |
              (I/F3-w) |                  (I/F4-v) |
    //////////////  ROUTER-3  <--- Client --->  ROUTER-4   /////////////
    /         (I/F3-x) |                  (I/F4-x) |                   /
    /                  |                           |                   /
    / (Net-x)   -------+-------------+-------------+-------  AS 2000   /
    /                                |                                 /
    /                       (I/F2-x) |                                 /
    ////////////////////////////  ROUTER-2  <-- Reflector //////////////
                            (I/F2-y) |
                                     |
      (Net-y)              ----------+------+----
                                            |
                                   (I/F1-y) | 
                    //////////////////// ROUTER-1 /////////////////
                    /              (I/F1-z) |                     /
                    /                       |       AS1000        /
      (Net-z)       /      ---------+-------+------               /
                    /               |                             /
                                  HOST-1

(Net-t) (Prefix 3ffe:501:481d:f007::/64)
(Net-u) (Prefix 3ffe:501:481d:f006::/64)
(Net-v) (Prefix 3ffe:501:481d:f005::/64)
(Net-w) (Prefix 3ffe:501:481d:f004::/64)
(Net-x) (Prefix 3ffe:501:481d:f003::/64)
(Net-y) (Prefix 3ffe:501:481d:f002::/64)
(Net-z) (Prefix 3ffe:501:481d:f001::/64)

"///" : AS boundary

Network Prefix Network media

Net-t 3ffe:501:481d:f007::/64 Ethernet 10BASE-T

Net-u 3ffe:501:481d:f006::/64 Ethernet 10BASE-T

Net-v 3ffe:501:481d:f005::/64 Ethernet 10BASE-T

Net-w 3ffe:501:481d:f004::/64 Ethernet 10BASE-T

Net-x 3ffe:501:481d:f003::/64 Ethernet 10BASE-T

Net-y 3ffe:501:481d:f002::/64 Ethernet 10BASE-T

Net-z 3ffe:501:481d:f001::/64 Ethernet 10BASE-T

Test Machine:

Machine Comments Initial status Configuration

HOST-2 Reference Machine Is attached to Net-u with power turned off. -

ROUTER-5 Reference Machine Power is turned off.
I/F5-w is attached to Net-w while
I/F5-u is attached to Net-u. AS # 3000
EBGP peer ROUTER-3 (I/F3-w)

Sends RA to Net-w and Net-u.

HOST-3 Reference Machine Is attached to Net-t with power turned off. -

ROUTER-6 Reference Machine Power is turned off.
I/F6-v is attached to Net-v while
I/F6-t is attached to Net-t. AS # 4000
EBGP peer ROUTER-4 (I/F4-v).

Sends RA to Net-v and Net-t.

ROUTER-3 Reference Machine Power is turned off.
I/F3-x is attached to Net-x while
I/F3-w is attached to Net-w. AS # 2000
EBGP peer ROUTER-5 (I/F5-w)
IBGP peer ROUTER-2 (I/F2-x)

Sends RA to Net-w and Net-x.

ROUTER-4 Reference Machine Power is turned off.
I/F4-x is attached to Net-x while
I/F4-v is attached to Net-v. AS # 2000
peer ROUTER-6 (I/F6-v).
IBGP peer ROUTER-2 (I/F2-x)

Sends RA to Net-v and Net-x.

ROUTER-2 Target Machine Power is turned off.
I/F2-y is attached to Net-y while
I/F2-x is attached to Net-x. AS # 2000
EBGP peer ROUTER-1 (I/F1-y).

IBGP Route Reflector
IBGP Client ROUTER-3 (I/F3-x)
IBGP Client ROUTER-4 (I/F4-x)

Sends RA to Net-x and Net-y.

ROUTER-1 Reference Machine Power is turned off.
I/F1-z is attached to Net-z while
I/F1-y is attached to Net-y. AS # 1000
EBGP peer ROUTER-2 (I/F2-y)

Sends RA to Net-y and Net-z.

HOST-1 Reference Machine Is attached to Net-z with power turned off. -

Applications:
Interoperability is checked using traceroute application program.

Interoperability check

No Action Criteria Comments

1 Boot ROUTER-1. - -

2 Boot ROUTER-3. - -

3 Boot ROUTER-4. - -

4 Boot ROUTER-5. - Now ROUTER-3 and 5 learn the path between Net-x and Net-u.

5 Boot ROUTER-6. - Now ROUTER-4 and 6 learn the path between Net-x and Net-t.

6 Boot ROUTER-2. - Now ROUTER-2 learns the path Net-z to Net-x, Net-u to Net-x and Net-t to Net-x and advertises all path to ROUTER-3 and 4.

Check BGP4+ information and Routing Table of all routers.

7 Boot HOST-1. - -

8 Boot HOST-2. - -

9 Boot HOST-3. - -

10 At HOST-1, run "traceroute" to HOST-2's Global address. *Complete traceroute.
*ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> ROUTER-5 -> HOST-2
HOST-1 and HOST-2 communicate via ROUTER-1, 2, 3, 5.

11 At HOST-2, run "traceroute" to HOST-1's Global address. *Complete traceroute.
*ROUTER-5 -> ROUTER-3 -> ROUTER-2 -> ROUTER-1 -> HOST-1
HOST-2 and HOST-1 communicate via ROUTER-5, 3, 2, 1.

12 At HOST-1, run "traceroute" to HOST-3's Global address. *Complete traceroute.
*ROUTER-1 -> ROUTER-2 -> ROUTER-4 -> ROUTER-6 -> HOST-3
HOST-1 and HOST-3 communicate via ROUTER-1, 2, 4, 6.

13 At HOST-3, run "traceroute" to HOST-1's Global address. *Complete traceroute.
*ROUTER-6 -> ROUTER-4 -> ROUTER-2 -> ROUTER-1 -> HOST-1
HOST-3 and HOST-1 communicate via ROUTER-6, 4, 2, 1.

14 At HOST-2, run "traceroute" to HOST-3's Global address. *Complete traceroute.
*ROUTER-5 -> ROUTER-3 -> ROUTER-2 -> ROUTER-4 -> ROUTER-6 -> HOST-3
HOST-2 and HOST-3 communicate via ROUTER-5, 3, 2, 4, 6.

15 At HOST-3, run "traceroute" to HOST-2's Global address. *Complete traceroute.
*ROUTER-6 -> ROUTER-4 -> ROUTER-2 -> ROUTER-3 -> ROUTER-5 -> HOST-2
HOST-2 and HOST-3 communicate via ROUTER-6, 4, 2, 3, 5.

Mark"*"with no number means that we are going to judge that subject.

Network	Prefix	Network media
Net-t	3ffe:501:481d:f007::/64	Ethernet 10BASE-T
Net-u	3ffe:501:481d:f006::/64	Ethernet 10BASE-T
Net-v	3ffe:501:481d:f005::/64	Ethernet 10BASE-T
Net-w	3ffe:501:481d:f004::/64	Ethernet 10BASE-T
Net-x	3ffe:501:481d:f003::/64	Ethernet 10BASE-T
Net-y	3ffe:501:481d:f002::/64	Ethernet 10BASE-T
Net-z	3ffe:501:481d:f001::/64	Ethernet 10BASE-T

Machine	Comments	Initial status	Configuration
HOST-2	Reference Machine	Is attached to Net-u with power turned off.	-
ROUTER-5	Reference Machine	Power is turned off. I/F5-w is attached to Net-w while I/F5-u is attached to Net-u.	AS # 3000 EBGP peer ROUTER-3 (I/F3-w) Sends RA to Net-w and Net-u.
HOST-3	Reference Machine	Is attached to Net-t with power turned off.	-
ROUTER-6	Reference Machine	Power is turned off. I/F6-v is attached to Net-v while I/F6-t is attached to Net-t.	AS # 4000 EBGP peer ROUTER-4 (I/F4-v). Sends RA to Net-v and Net-t.
ROUTER-3	Reference Machine	Power is turned off. I/F3-x is attached to Net-x while I/F3-w is attached to Net-w.	AS # 2000 EBGP peer ROUTER-5 (I/F5-w) IBGP peer ROUTER-2 (I/F2-x) Sends RA to Net-w and Net-x.
ROUTER-4	Reference Machine	Power is turned off. I/F4-x is attached to Net-x while I/F4-v is attached to Net-v.	AS # 2000 peer ROUTER-6 (I/F6-v). IBGP peer ROUTER-2 (I/F2-x) Sends RA to Net-v and Net-x.
ROUTER-2	Target Machine	Power is turned off. I/F2-y is attached to Net-y while I/F2-x is attached to Net-x.	AS # 2000 EBGP peer ROUTER-1 (I/F1-y). IBGP Route Reflector IBGP Client ROUTER-3 (I/F3-x) IBGP Client ROUTER-4 (I/F4-x) Sends RA to Net-x and Net-y.
ROUTER-1	Reference Machine	Power is turned off. I/F1-z is attached to Net-z while I/F1-y is attached to Net-y.	AS # 1000 EBGP peer ROUTER-2 (I/F2-y) Sends RA to Net-y and Net-z.
HOST-1	Reference Machine	Is attached to Net-z with power turned off.	-

No	Action	Criteria	Comments
1	Boot ROUTER-1.	-	-
2	Boot ROUTER-3.	-	-
3	Boot ROUTER-4.	-	-
4	Boot ROUTER-5.	-	Now ROUTER-3 and 5 learn the path between Net-x and Net-u.
5	Boot ROUTER-6.	-	Now ROUTER-4 and 6 learn the path between Net-x and Net-t.
6	Boot ROUTER-2.	-	Now ROUTER-2 learns the path Net-z to Net-x, Net-u to Net-x and Net-t to Net-x and advertises all path to ROUTER-3 and 4. Check BGP4+ information and Routing Table of all routers.
7	Boot HOST-1.	-	-
8	Boot HOST-2.	-	-
9	Boot HOST-3.	-	-
10	At HOST-1, run "traceroute" to HOST-2's Global address.	Complete traceroute. ROUTER-1 -> ROUTER-2 -> ROUTER-3 -> ROUTER-5 -> HOST-2	HOST-1 and HOST-2 communicate via ROUTER-1, 2, 3, 5.
11	At HOST-2, run "traceroute" to HOST-1's Global address.	Complete traceroute. ROUTER-5 -> ROUTER-3 -> ROUTER-2 -> ROUTER-1 -> HOST-1	HOST-2 and HOST-1 communicate via ROUTER-5, 3, 2, 1.
12	At HOST-1, run "traceroute" to HOST-3's Global address.	Complete traceroute. ROUTER-1 -> ROUTER-2 -> ROUTER-4 -> ROUTER-6 -> HOST-3	HOST-1 and HOST-3 communicate via ROUTER-1, 2, 4, 6.
13	At HOST-3, run "traceroute" to HOST-1's Global address.	Complete traceroute. ROUTER-6 -> ROUTER-4 -> ROUTER-2 -> ROUTER-1 -> HOST-1	HOST-3 and HOST-1 communicate via ROUTER-6, 4, 2, 1.
14	At HOST-2, run "traceroute" to HOST-3's Global address.	Complete traceroute. ROUTER-5 -> ROUTER-3 -> ROUTER-2 -> ROUTER-4 -> ROUTER-6 -> HOST-3	HOST-2 and HOST-3 communicate via ROUTER-5, 3, 2, 4, 6.
15	At HOST-3, run "traceroute" to HOST-2's Global address.	Complete traceroute. ROUTER-6 -> ROUTER-4 -> ROUTER-2 -> ROUTER-3 -> ROUTER-5 -> HOST-2	HOST-2 and HOST-3 communicate via ROUTER-6, 4, 2, 3, 5.