[alcatel-nsp] Class-Based Forwarding

Phil Bedard philxor at gmail.com
Fri Jan 28 17:29:55 EST 2011


I believe there is a requirement to use shared queueing on a VLL SAP which
you want to use CBF with.  So you would use the "shared-queueing" keyword
when you assign the sap-ingress policy to the sap.

     sap 1/1/2 create
                ingress
                    qos 2 shared-queueing
                exit
            exit

 

Phil 

On 1/28/11 4:18 PM, "Bryan" <deadheadblues at gmail.com> wrote:

>Hi,
>
>I cannot get CB forwarding to work. Perhaps I have configured
>something wrong. My service and SDPs are working and I can ping
>through the service fine. Traffic toward 7.7.7.1 should get put in fc
>"af" and travel across LSP1, traffic toward 7.7.7.2 should get put in
>"ef" class and travel across LSP2. I can see that traffic is getting
>put in the right fc by looking at the sap stats, however when I
>monitor the port stats (monitor port 1/1/x/ absolute) I can tell
>traffic to 7.7.7.2 is not taking LSP2, but rather the default lsp
>LSP1. Here are the relevant config pieces, if you need more let me
>know.
>
>Topology description:
>
>CE1 is connected to R3, CE2 (7.7.7.1 and 7.7.7.2) is connected to R5.
>R3 (10.1.1.3) has two paths to R5 (10.1.1.5), one direct (LSP1: R3-R5)
>and one through R4 and R6 (LSP2: R3-R4-R6-R5).
>
>
>QOS CONFIGURATION:
>
>*A:r3>config>qos# info
>----------------------------------------------
>#--------------------------------------------------
>echo "QoS Policy Configuration"
>#--------------------------------------------------
>        sap-ingress 2 create
>            queue 1 create
>            exit
>            queue 3 create
>            exit
>            queue 5 create
>            exit
>            queue 11 multipoint create
>            exit
>            fc "af" create
>                queue 3
>            exit
>            fc "ef" create
>                queue 5
>            exit
>            ip-criteria
>                entry 10 create
>                    match
>                        dst-ip 7.7.7.1/32
>                    exit
>                    action fc "af"
>                exit
>                entry 20 create
>                    match
>                        dst-ip 7.7.7.2/32
>                    exit
>                    action fc "ef"
>                exit
>            exit
>        exit
>
>SERVICE CONFIGURATION:
>
>*A:r3>config>service# info
>----------------------------------------------
>        customer 1 create
>            description "Default customer"
>        exit
>        sdp 5 mpls create
>            far-end 10.1.1.5
>            lsp "LSP1"
>            lsp "LSP2"
>            keep-alive
>                shutdown
>            exit
>            class-forwarding default-lsp "LSP1"
>                fc "af" lsp "LSP1"
>                fc "ef" lsp "LSP2"
>                no shutdown
>            exit
>            no shutdown
>        exit
>        epipe 1 customer 1 create
>            sap 1/1/2 create
>                ingress
>                    qos 2
>                exit
>            exit
>            spoke-sdp 5:1 create
>            exit
>            no shutdown
>        exit
>----------------------------------------------
>
>MPLS CONFIGURATION:
>
>*A:r3>config>router>mpls# info
>----------------------------------------------
>            interface "system"
>            exit
>            interface "tor4"
>            exit
>            interface "tor5"
>            exit
>            path "r5a"
>                hop 10 10.3.5.5 strict
>                no shutdown
>            exit
>            path "r5b"
>                hop 10 10.3.4.4 strict
>                hop 20 10.4.6.6 strict
>                hop 30 10.5.6.5 strict
>                no shutdown
>            exit
>            lsp "LSP1"
>                to 10.1.1.5
>                primary "r5a"
>                exit
>                no shutdown
>            exit
>            lsp "LSP2"
>                to 10.1.1.5
>                primary "r5b"
>                exit
>                no shutdown
>            exit
>            no shutdown
>----------------------------------------------
>
>MPLS LSP AND SDP STATUS:
>
>*A:r3# show router mpls lsp
>
>==========================================================================
>=====
>MPLS LSPs (Originating)
>==========================================================================
>=====
>LSP Name                           To                  Fastfail     Adm
>Opr
>                                                       Config
>--------------------------------------------------------------------------
>-----
>LSP1                               10.1.1.5            No           Up
>Up
>LSP2                               10.1.1.5            No           Up
>Up
>--------------------------------------------------------------------------
>-----
>LSPs : 2
>==========================================================================
>=====
>*A:r3# show service sdp
>
>==========================================================================
>====
>Services: Service Destination Points
>==========================================================================
>====
>SdpId    Adm MTU  Opr MTU  IP address       Adm  Opr         Deliver
>Signal
>--------------------------------------------------------------------------
>----
>5        0        1556     10.1.1.5         Up   Up          MPLS
>TLDP
>--------------------------------------------------------------------------
>----
>Number of SDPs : 1
>--------------------------------------------------------------------------
>----
>==========================================================================
>====
>
>
>Can you see anything wrong?
>
>Thanks,
>
>Bryan
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