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  • 7/25/2019 SGMP Section

    1/19

    2000, Cisco Systems, Inc. All rights reserved. 1

    ITP Course

    March 2th

    ! 2"th

    ITP Product Team

  • 7/25/2019 SGMP Section

    2/19

    Section 2 # S$MP

    2002, Cisco Systems, Inc. All rights reserved. 2

  • 7/25/2019 SGMP Section

    3/19

    2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!&

    S$MP and S$

    Signaling $ate'ay Mate Protocol allo's S$s to esta(lish anassociation to a mated S$ 'ith an e)uivalent con*iguration

    Mated +air S$s load share or (acu+ each otherMated!+air S$s must have e)uivalent S$ con*iguration -sameAS and AS oute Ta(le routing!ey/.

    The local +oint code o* each S$ must (e uni)ue and must notmatch any AS +oint code -PC/, or any AS oute Ta(le +oint

    code con*igured on its mate.

  • 7/25/2019 SGMP Section

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    2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!

    S$MP # acu+ 3am+le

    STP

    STP

    AS 45ASPA

    ACTI6

    ASP

    ACTI6

    ASPC

    I7ACTI6

    Signaling $ate'ay Mated Pair

    AS 45

  • 7/25/2019 SGMP Section

    5/19

    2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!8

    S$MP # 3am+le, AS in S$ (ecomesinactive

    STP

    STP

    AS 45ASPA

    ACTI6

    ASP

    ACTI6

    ASPC

    I7ACTI6

    Signaling $ate'ay Mated Pair

    AS 45

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    2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!9

    S$MP # 3am+le, AS in S$ (ecomes activeagain # AS timer

    STP

    STP

    ASPA

    ACTI6

    ASP

    ACTI6

    ASPC

    I7ACTI6

    Signaling $ate'ay Mated Pair

    AS 45

    AS 45

    5+on (eing active again, 5++er S$ )ueues

    ne' messages and 'aits *or earlier

    messages to (e delivered (y mate (e*ore sending again

  • 7/25/2019 SGMP Section

    7/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!:

    7et'or Availa(ility 3am+lePhysical Connectivity

    ASP2ITP2

    ASP1

    STP1

    STP2

    ITP1

    SCP

    IP

    SS7IP

    ITP

    ITP

    A

    C

    ;

    $

    1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    8/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!"

    7et'or Availa(ility 3am+le4ogical Connectivity

    IP

    ASP2

    SS7

    ASP1

    STP1

    STP2

    ITP1

    SCP

    1

    2

    3

    4

    ITP

    ITP

    ITP2

    AS outing =ey > 1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    9/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!?

    7et'or Availa(ility 3am+le4oss o* SCTP Path # ITP1 to ASP1

    ASP2ITP2

    ASP1

    STP1

    STP2

    ITP1

    SCP

    IP

    SS7IP

    ITP

    ITP

    A

    ;

    @

    AS outing =ey > 1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    10/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!10

    7et'or Availa(ility 3am+le4oss o* SCTP Assoc # ITP1 to ASP1

    IP

    ASP2

    SS7

    ASP1

    STP1

    STP2

    ITP1

    SCP

    1

    2

    3

    4

    ITP

    ITP

    ITP2

    @

    AS outing =ey > 1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    11/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!11

    7et'or Availa(ility 3am+le4oss o* AS at ITP1

    IP

    ASP2

    SS7

    ASP1

    STP1

    STP2

    ITP1

    SCP

    1

    2

    3

    4

    ITP

    ITP

    ITP2

    @

    @

    T;P

    AS outing =ey > 1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    12/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!12

    7et'or Availa(ility 3am+le4oss o* AS at ITP1 # 'ith C!lin

    IP

    ASP2

    SS7

    ASP1

    STP1

    STP2

    ITP1

    SCP

    1

    2

    3

    4

    ITP

    ITP

    ITP2

    @

    @

    T;

    AS outing =ey > 1.1.&, ASP1, ASP2

    4oad!share Tra**ic Mode

  • 7/25/2019 SGMP Section

    13/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1&

    Congestion 7oti*ication -T;C SCB7/

    The ITP maintains AS and AS PC congestion levels.

    IP side congestion level is (ased solely on ASP and S$ MateSCTP association congestion. SCB7s *rom ASPs are ignored.

    T;CSCB7 re+orting (y the ITP is disa(led (y de*ault, and is

    ena(led (y a glo(al con*ig command.T;CSCB7 are not sent *or an AS PC that is a local PC.

    es+onse mode T;C is sent to the BPC o* the MS5.

    SCB7 is sent to all active ASPs.

    y de*ault, T;C is sent (ased on AS PC congestion status.Alternatively, T;C can (e sent (ased on AS congestion status.This mode is ena(led (y a glo(al con*ig command.

    AS congestion level change is sent to the S$ mate via a SCB7.

  • 7/25/2019 SGMP Section

    14/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1

    AS Congestion 4evel Calculation

    A Ma3-C,/

    Ma3-C,/

    A Ma3-C,/

    Ma3-C,/

    AS is not rerouting AS is rerouting

    Bverride AS

    4oadshare AS

    4oadshare indings AS

    roadcast AS

    AD highest SCTP association congestion level among active ASPs in AS

    D lo'est SCTP association congestion level among active ASPs in AS

    CD AS congestion level on S$ mate as re+orted via SCB7 *rom S$ mate

    D S$MP SCTP association congestion level

  • 7/25/2019 SGMP Section

    15/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!18

    AS oute Ta(le

    Set o* +ossi(le routes to a 6irtual Point Code -virtual AS/ in

    the IP net'or.ach route to an AS is +rioritiEed, e)ual +riorities are notallo'ed.

    very route is either availa(le, restricted or unavaila(le

    ASPs send SS7M messages re+orting AS oute state

  • 7/25/2019 SGMP Section

    16/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!19

    edundant

  • 7/25/2019 SGMP Section

    17/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1:

    Agenda

    M&5A S5A AS

    Tra**ic ModesS$MP

    MonitoringTrou(leshooting

  • 7/25/2019 SGMP Section

    18/19 2000, Cisco Systems, Inc. All rights reserved. ITP Course%Section 2!1"

    Signaling $ate'ay Mated Pair

    To ena(le S$MP and s+eci*y the S$MP local +ort.

    ITP(config)#cs7 sgmp local-port

    To con*igure a local IP address *or use (y S$MP.

    ITP(config-cs7-sgmp)#local-ip ip-address

    To de*ine mated S$ and ena(le CS: mated!sg su(mode.

    ITP(config)#cs7 mated-sg mate-name remote-port [passive]

    To s+eci*y the remote IP address o* the Mate.

    ITP(config-cs7-mated-sg)remote-ip remote-ipTo de*ine the FoS class *or the S$ mated +air.

    ITP(config-cs7-mated-sg)qos-class class

  • 7/25/2019 SGMP Section

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    3ercise D S$MP

    Con*igure S$MP on your S$ and its mate.

    emove ASP1 *rom AS$TT on (oth S$s.

    ring ASP2 active in AS$TT on (oth S$s, and veri*y that theS$MP sct+ association is active.

    ring ASP1 active in ASPCSS7.

    Send SCCP +acet to AS$TT via your to+ S$.

    Close the sct+ association (et'een ASP2 and your to+ S$.

    6eri*y that AS$TT state is Gd'n!reH -do'nrerouting/ on your to+

    S$.esend SCCP +acet to AS$TT via your to+ S$ and veri*y that itgets to the as+sim via your (ottom S$.

    ring ASP2 active on your to+ S$, and veri*y that the as+simreceives tra**ic via your to+ S$.