4A0-104 practice question 35 of 35

On Nokia 7750 SR OS, routing information between the CE and PE can be exchanged using the following methods.

Full set: 288 questions

Answer options

A: ISIS, RIP, OSPF, static routes

B: BGP, ISIS, RIP, OSPF, static routes

C: BGP, RIP, OSPF, static routes, OSPF3 Correct answer

D: ISIS, RIP, OSPF, static routes, OSPF3

Correct Answer:

C. BGP, RIP, OSPF, static routes, OSPF3

Explanation

On SR OS a PE–CE routing context supports only Static, RIP, OSPFv2, OSPFv3 and EBGP. IS-IS is not implemented on VRF interfaces, therefore any choice containing IS-IS is invalid; option C lists only the supported methods.

Why Incorrect

A. Includes IS-IS, which is not a supported PE-CE protocol on 7750 SR.
B. Same problem – IS-IS is unsupported.
D. Same problem – IS-IS is unsupported.

References

1. Nokia SR OS 22.2.R1 Virtual Private Routed Networks Guide, “PE-CE Routing Options”, pp. 61-62.

2. Nokia 4A0-104 Courseware, Module 4 “VPRN Fundamentals”, slide 4-23.

3. RFC 4364, §4.3 (lists the standard PE-CE protocols).

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