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which type of traffic protection mechanism is used for the LSP?

Refer to the Exhibit.

Referring to the exhibit, which type of traffic protection mechanism is used for the LSP?

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A.
fast-reroute

B.
link-protection

C.
node-link-protection

D.
secondary

2 Comments on “which type of traffic protection mechanism is used for the LSP?”

  2. rob says:

    https://www.juniper.net/techpubs/en_US/junos11.4/topics/concept/mpls-lsp-link-protect-overview-solutions.html

    http://www.juniper.net/documentation/en_US/junos13.3/topics/concept/mpls-lsp-multiple-bypass.html

    http://www.juniper.net/documentation/en_US/junos13.3/topics/usage-guidelines/mpls-configuring-link-protection-on-interfaces-used-by-lsps.html#id-90675

    Type: Bypass LSP

    If fast-reroute was up, You would see something along the lines of

    24.24.24.0
    From: 192.168.1.2, LSPstate: Up, ActiveRoute: 0
    LSPname: to-datacenter, LSPpath: Primary
    LSPtype: Static Configured
    Suggested label received: -, Suggested label sent: –
    Recovery label received: -, Recovery label sent: 300528
    Resv style: 1 SE, Label in: -, Label out: 300528
    Time left: -, Since: Wed Aug 24 11:22:43 2016
    Tspec: rate 85Mbps size 85Mbps peak Infbps m 20 M 1500
    Port number: sender 3 receiver 8066 protocol 0
    FastReroute desired
    PATH rcvfrom: localclient
    Adspec: sent MTU 1500
    Path MTU: received 1500
    PATH sentto: 20.0.0.3 (ge-0/0/3.0) 7 pkts
    RESV rcvfrom: 20.0.0.3 (ge-0/0/3.0) 7 pkts, Entropy label: No
    Explct route: 24.58.0.2
    Record route: 20.0.0.3 20.0.0.13 30.0.0.5 30.0.0.15
    Detour is Up
    Detour Tspec: rate 0bps size 0bps peak Infbps m 20 M 1500
    Detour adspec: sent MTU 1500
    Path MTU: received 1500
    Detour PATH sentto: 20.0.0.1 (ge-0/0/2.0) 4 pkts
    Detour RESV rcvfrom: 20.0.0.1 (ge-0/0/2.0) 3 pkts, Entropy label: No
    Detour Explct route: 20.0.0.1 20.0.0.7 20.0.0.13 30.0.0.7 30.0.0.13
    Detour Record route: 20.0.0.1 20.0.0.7 20.0.0.13 30.0.0.5 30.0.0.15
    Detour Label out: 300816

    node-link-protection would have a similar output with

    user@R1> show mpls lsp extensive
    Ingress LSP: 1 sessions

    192.168.5.1
    From: 192.168.1.1, State: Up , ActiveRoute: 0, LSPname: lsp2-r1-to-r5
    ActivePath: via-r2 (primary)
    Node/Link protection desired

    Secondary would show a up if it was a secondary lsp.




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