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WAN-PHY Cisco Juniper Interop

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    Introduction

     

    What is WAN-PHY mode?

    The purpose of WAN-PHY is to render 10 Gigabit Ethernet compatible with the SONET STS-192c format and data rate, as defined by ANSI, as well as the SDH VC-4-64c container specified by ITU. When the controller is in WAN-PHY mode the WIS sublayer transports 10 Gigabit Ethernet frames in an OC-192c SONET payload which can interoperate with SONET section or line level repeaters. This effectively bridges the asynchronous world of Ethernet data with synchronous SONET/SDH transport allowing 10 Gigabit Ethernet to be transparently carried over current DWDM networks without having to directly map the Ethernet frames into SONET/SDH.

    PHY device maps 10GE LAN streams to STS-192c SPE and this limits the data-rate to 9.584 Gbps. WAN PHY provides rich SONET OAM capabilities for link management. It is to be noted that WAN PHY line-rate is lower than 10GE LAN rate (10.3125 Gbps).

     

     

    Topology

     

    WAN-PHY InterOP between Cisco & Juniper Topology

     

     

     

     

    Cisco Configuration & show commands

     

    Cisco Configuration:

     

    This example shows how to configure the interface for WAN PHY mode:

    RP/0/RSP0/CPU0:LSR# config

    RP/0/RSP0/CPU0:LSR(config)# interface interface TenGigE0/1/0/27                                                                                                  

    RP/0/RSP0/CPU0:LSR(config-if)# transport-mode wan

    RP/0/RSP0/CPU0:LSR(config-if)# commit

    The following configuration is needed to operate in WAN PHY mode:

    RP/0/RSP0/CPU0:LSR# config

    RP/0/RSP0/CPU0:LSR(config)# controller wanphy 0/1/0/27                                                                                                  

    RP/0/RSP0/CPU0:LSR(config)# wanmode on

    RP/0/RSP0/CPU0:LSR(config)# commit

      

     

    Cisco show commands:

     

    This cli displays registers, alarms, and module information for the specified 10-Gigabit Ethernet WAN PHY controller.

     

    RP/0/RP0/CPU0:LSR2#sh controllers wanphy 0/1/0/27 all

    Fri Jul 15 15:59:32.574 PDT

    Interface: wanphy0/1/0/27

    Configuration Mode: WAN Mode

    SECTION

      LOF = 1, LOS = 0, BIP(B1) = 0

    LINE

      AIS = 0, RDI = 1, FEBE = 0, BIP(B2) = 0

    PATH

      AIS = 0, RDI = 0, FEBE = 47903, BIP(B3) = 0

      LOP = 0, NEWPTR = 0, PSE = 0, NSE = 0

    WIS ALARMS

      SEF = 1, FEPLMP = 0, FEAISP = 1

      WLOS = 0, PLCD = 0

      LFEBIP = 0, PBEC = 0, PLMP = 0

     

    Active Alarms[All defects]:

    Active Alarms[Highest Alarms]:

      Rx(K1/K2): N/A, Tx(K1/K2): N/A

      S1S0 = N/A, C2 = N/A

    PATH TRACE BUFFER

    Remote IP addr:

    BER thresholds: SF = E-3 SD = E-6

    TCA thresholds: N/A

    Alarm reporting enabled for:los, lof, path lop,

    REGISTERS

    P_FEBE  : 47903

    L_FE_BIP: 0

    L_BIP   : 0

    P_BEC   : 0

    S_BIP   : 0

    J1-Rx0  : 0x   0

    J1-Rx1  : 0x   0

    J1-Rx2  : 0x2f30

    J1-Rx3  : 0x2f30

    J1-Rx4  : 0x2d30

    J1-Rx5  : 0x7865

    J1-Rx6  : 0x  e8

    J1-Rx7  : 0x   0

    Internal Information

    Operational Mode: WAN Mode

    Current Alarms: 0x0                                                                                                        

     

    This cli displays information about any alarms that are detected by the specified 10-Gigabit Ethernet WAN PHY controller.

     

    RP/0/RP0/CPU0:LSR2#sh controllers wanphy 0/1/0/27 alarms

    Fri Jul 15 15:59:38.839 PDT

    Interface: wanphy0/1/0/27

    Configuration Mode: WAN Mode

    SECTION

      LOF = 1, LOS = 0, BIP(B1) = 0

    LINE

      AIS = 0, RDI = 1, FEBE = 0, BIP(B2) = 0

    PATH

      AIS = 0, RDI = 0, FEBE = 47903, BIP(B3) = 0

      LOP = 0, NEWPTR = 0, PSE = 0, NSE = 0

    WIS ALARMS

      SEF = 1, FEPLMP = 0, FEAISP = 1

      WLOS = 0, PLCD = 0

      LFEBIP = 0, PBEC = 0, PLMP = 0

     

    Active Alarms[All defects]:

    Active Alarms[Highest Alarms]:

      Rx(K1/K2): N/A, Tx(K1/K2): N/A

      S1S0 = N/A, C2 = N/A

    PATH TRACE BUFFER

    Remote IP addr:

    BER thresholds: SF = E-3 SD = E-6

    TCA thresholds: N/A

    Alarm reporting enabled for:los, lof, path lop,

     

     

    This cli displays registers for the specified 10-Gigabit Ethernet WAN PHY controller.

     

    RP/0/RP0/CPU0:LSR2#sh controllers wanphy 0/1/0/27 registers

    Fri Jul 15 15:59:44.562 PDT

    Interface: wanphy0/1/0/27

    Configuration Mode: WAN Mode

    REGISTERS

    P_FEBE  : 47903

    L_FE_BIP: 0

    L_BIP   : 0

    P_BEC   : 0

    S_BIP   : 0

    J1-Rx0  : 0x   0

    J1-Rx1  : 0x   0

    J1-Rx2  : 0x2f30

    J1-Rx3  : 0x2f30

    J1-Rx4  : 0x2d30

    J1-Rx5  : 0x7865

    J1-Rx6  : 0x  e8

    J1-Rx7  : 0x   0

    Internal Information

    Operational Mode: WAN Mode

    Current Alarms: 0x0                                                                                                         

     Cisco Configuration of Signal Failure(SF) and Signal Degrade(SD)

     

    SD/SF BER threshold is configurable using ‘threshold’ command.
    Software monitors B2 BIP errors and asserts SD/SF BER alarms whenever the error-rate exceeds the threshold. Port link will go down once BIP error-rate exceeds SF BER threshold.

     

     

    RP/0/RSP0/CPU0:ios#sh controllers wanphy 0/6/0/0 alarms | inc SD
    BER thresholds: SF = 10e-3 SD = 10e-6

     

    Threshold configuration:


    RP/0/RSP0/CPU0:ios#conf t
    RP/0/RSP0/CPU0:ios(config)#controller wanphy 0/6/0/0
    RP/0/RSP0/CPU0:ios(config-wanphy)#threshold ?
    sd-ber Set Signal Degrade BER threshold
    sf-ber Set Signal Fail BER threshold

     

    CISCO Troubleshooting

    Do the following steps before debugging L2/L3 layer:

      1. Check Fiber or optics when B1/B2/B3 counters are incrementing
      2. Check for SD_BER or SF_BER alarms in show controller wanphy <> alarms
      3. Show controller tengig <> internal

    RP/0/RP0/CPU0:LSR2#sh controllers tenGigE0/1/0/27 internal
    Tue Jul 19 17:02:45.829 PDT

    Internal data for interface: TenGigE0/1/0/27
    Port Number         : 27
    Bay Number          : 0
    Ifinst              : 0
    Ifinst Subport      : 27
    Board Type          : 0x00380261
    Port Type           : 10GE
    Transport mode      : WAN
    BIA MAC addr        : 6c9c.ed6f.214b
    Oper. MAC addr      : e0ac.f167.259b
    Egress MAC addr     : e0ac.f167.259b
    Port Available      : true
    Status polling is   : enabled
    Status events are   : enabled
    I/F Handle          : 0x06000780
    Cfg Link Enabled    : tx/rx enabled
    H/W Tx Enable       : yes
    MTU                 : 2000
    H/W Speed           : 10 Gbps
    H/W Duplex          : Full
    H/W Loopback Type   : None
    FEC                 : Disable
    H/W FlowCtrl Type   : None
    H/W AutoNeg Enable  : Off
    H/W Link Defects    : (0x00100000)  WANPHY_SD_SF_BER
    H/W Raw Link Defects : (0x00100000)  WANPHY_SD_SF_BER
    Link Up             : yes
    Link Led Status     : Link up   -- Green/Amber
    Serdes hw version   : 0.3
    Serdes sw version   : 8.0
    Pluggable Present   : yes
    Pluggable Type      : SFP-10G-SR
    Pluggable PID       : SFP-10G-SR
    Pluggable Compl.    : Compliant
    Pluggable Type Supp.: Supported
    Pluggable PID Supp. : Supported

     

    Juniper Configuration & Show commands

     

    Juniper Configuration:

     

    To set a WAN-PHY on Juniper 10G interface use the following cli:

    set interfaces <interface id> framing wan-phy

     

    • Configuring the wan-phy framing mode on the 10-Gigabit Ethernet ports allows the interface to accept SONET or SDH frames without further configuration.
    • If you configure the WAN PHY mode on an aggregated Ethernet interface, you must set the aggregated Ethernet link speed to OC192.

     

     

     

    root@JNPR-2-LER5# show interfaces

    Jul 15 15:14:11

    xe-0/0/0 {

        description "connected to LSR2 ten0/1/0/28 ";

        framing {

            wan-phy;

        }

        gigether-options {

            802.3ad ae2;

        }

    }

    xe-0/1/0 {

        description "connected to LSR2 ten0/1/0/27 ";

        framing {

            wan-phy;

        }

        gigether-options {

            802.3ad ae2;

        }

    }

     

    Juniper show command:

     

    To display interface information, use the operational mode command show interfaces xe-fpc/pic/port extensive.

     

     

    root@JNPR-2-LER5# run show interfaces xe-0/0/0 extensive

    Jul 15 15:19:59

    Physical interface: xe-0/0/0, Enabled, Physical link is Up

      Interface index: 646, SNMP ifIndex: 524, Generation: 649

      Description: connected to LSR2 ten0/1/0/28

      Link-level type: Ethernet, MTU: 2000, MRU: 2008, Clocking: Internal, WAN-PHY mode, Speed: OC192, BPDU Error: None, MAC-REWRITE Error: None, Loopback: None, Source filtering: Disabled, Flow control: Disabled

      Pad to minimum frame size: Disabled

      Device flags   : Present Running

      Interface flags: SNMP-Traps Internal: 0x4000

      Link flags     : None

      CoS queues     : 8 supported, 8 maximum usable queues

      Hold-times     : Up 0 ms, Down 0 ms

      Current address: 00:19:e2:bc:17:c2, Hardware address: 00:19:e2:bc:10:00

      Last flapped   : 2016-07-11 18:44:03 PDT (3d 20:35 ago)

      Statistics last cleared: Never

      Traffic statistics:

       Input  bytes  :         149780058791               582416 bps

       Output bytes  :          10938000701                    0 bps

       Input  packets:            904262884                  442 pps

       Output packets:             54140655                    0 pps

       IPv6 transit statistics:

        Input  bytes  :                   0

        Output bytes  :                   0

        Input  packets:                   0

        Output packets:                   0

      Label-switched interface (LSI) traffic statistics:

       Input  bytes  :                    0                    0 bps

       Input  packets:                    0                    0 pps

      Dropped traffic statistics due to STP State:

       Input  bytes  :                    0

       Output bytes  :                    0

       Input  packets:                    0

       Output packets:                    0

       …..

      ……

      ……….

     

    Cisco Supported Hardware:

     

    List of Linecards & MPA’s with WAN-PHY support on ASR9K.


     1.        A9K-MPA-2x10GE
     2.        A9K-MPA-4x10GE
     3.        A9K-MPA-8x10GE
     4.        A9K-MPA-20x10GE
     5.        A9K-MPA-20x10GECM
     6.        A9K-MPA-2x100GE(10x10 breakout)
     7.        A9K-MPA-2x100GECM(10x10 breakout)
     8.        A9K-MPA-1x100GE(10x10 breakout)
     9.        A9K-24x10GE-SE/TR
    10.       A9K-36x10GE-SE/TR
    11.       A9K-8x100GE-SE/TR, A99K-8x100GE-SE/TR
    12.      A9K-4x100GE-SE/TR, A99K-4x100GE-SE/TR

     

    References:

    Cisco & Juniper Documentation

     

    Related Information:

    Sheetal Bhogale , Sr. Software Engineer, ASR9K

    Sivakumar Munagapati, Technical Leader , ASR9K

    Dinesh Pullat, Sr. Technical Leader, ASR9K

    Sadananda Phadke, Sr. Technical Leader, ASR9K