350-029 · Question #233
Which two features must be configured to perform AToM NSF? (Choose two)
The correct answer is B. SSO E. graceful restart. Before you configure AToM NSF, you need to configure MPLS LDP Graceful Restart. MPLS LDP GR is enabled globally. When you enable LDP GR, it has no effect on existing LDP sessions. LDP GR is enabled for new sessions that are established after the feature has been globally How…
Question
Which two features must be configured to perform AToM NSF? (Choose two)
Options
- AFRR
- BSSO
- Cdistribute CEF
- Dswitch virtual path
- Egraceful restart
How the community answered
(60 responses)- A8% (5)
- B83% (50)
- C3% (2)
- D5% (3)
Explanation
Before you configure AToM NSF, you need to configure MPLS LDP Graceful Restart. MPLS LDP GR is enabled globally. When you enable LDP GR, it has no effect on existing LDP sessions. LDP GR is enabled for new sessions that are established after the feature has been globally How AToM NSF Works AToM NSF improves the availability of the network of the service provider that uses AToM to provide Layer 2 VPN services. HA provides the ability to detect failures and handle them with minimal disruption to the service being provided. AToM NSF is achieved by SSO and NSF mechanisms. A standby RP provides control-plane redundancy. The control plane state and data plane provisioning information for the attachment circuits (ACs) and AToM pseudowires (PWs) are checkpointed to the standby RP to provide NSF for AToM L2VPNs.
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