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VoIP_Access
 

VoIP_Access

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    VoIP_Access VoIP_Access Presentation Transcript

    • SIP LBA
    • Fast Quiz What is the function of the LBA in the NW Architecture ? SIP Load Balancing How many VLAN does the Network Architecture use ? Two SIP and RTP I consider replacing the LBA with Media GW/Gatekeeper/SBC ,What might work ? Session Border Controller The LBA is down , what will happen No new calls, Existing call will not disconnect How many interfaces the LBA is using Two - SIP Internal and SIP External
    • Network Architecture VoIP NW RTP SIP RTP SIPLBA Radware AS-I/AS-II LBA Radware AS-I/AS-II Web Server Director Web Server Director RSTP/STP LN CO 10 PWR 1 3 5 7 FD 0 K L LN CO 10 PWR 1 3 5 7 FD 0 K L 2 4 6 8 AC HD Tx Rx RESET SYSOK 1 1 2 T 2 4 6 8 AC HD Tx Rx RESET SYSOK 1 1 2 1 2 3 4 5 6 7 8 T 1 2 3 4 5 6 7 8 SIP SIPSIP 1 3 5 7 9 11 13 15 17 19 21 23 Catalyst 2950 SERIES 1 3 5 7 9 11 13 15 17 19 21 23 Catalyst 2950 SERIES 1 2 1 2 SYST RPS SYST RPS STRT UTIL DUPLXSPEED STRT UTIL DUPLXSPEED MODE 2 4 6 8 10 12 14 16 18 20 22 24 2 4 6 8 10 12 14 16 18 20 22 24 MODE Switch(2950/4948) Switch(2950/4948) SIP RTP CMS HMP Secure Zone Secure Zone
    • Software • LBA SW Ver 8.23.06c Comverse SIP version • Future Ver AppDirector 1.06 • Cisco 2960 is using 121-22.EA6 • Cisco 4948 is using 122-25.EWA12
    • Hardware • Radware As-I with 256MB Ram Memory • 8 FE and 2 GBIC • Radware AS-II with 256 MB Ram Memory • 16 FE and 5 GBIC • Cisco DMZ SW L2 2950 Default • 24 FE ports + 2 GE • Alternatively Cisco 4948 – 48GE L3 • CMS HMP using 4 NICs (LAN Ports) • 2 for RTP only • 2 for SIP and DMZ<->SZ
    • Performance (Aging 900 sec) • Radware As-I with 256MB Ram Memory • 200 new Call per second • Radware AS-II with 256 MB Ram Memory • 250 new Call per second
    • LBA – Configuration OverView  One Farm  VRRP – High Availability  Health Monitoring and not connectivity check  Layer 7 UDP Load Balancing • Call-ID Header Tracking • Hashing • Persistency Incase of Failover the same Call-ID will reach the same Server  Local Triangulation Mode • No layer-3 change • MAC Replacing • Loop Back IP of the servers Must be identical to the Farm VIP  Server NAT • Use the same IP of the Farm/Loopback IP
    • Loopback Interface  SIP App is Bind to the Loopback IP  LBA is sending SIP Traffic to the Server’s Loopback IP
    • SIP Health Monitor  Checking Server Availability • Health Monitor  Sending SIP Options  Transport Layer UDP Port 5060  Awaits a response of 200 OK from the Server
    • SIP Health Monitor - Example Server MAC UDP 5060 (Local Triangulation) LBA Internal Loopback IP Interface SIP Options
    • SIP Health Monitor – Example Cont. Server Response 200 OK
    • Farm - Parameters •Farm Parameters •IP Address 10.1.2.9 •Farm Name (-n) VOIP-SIP5060 •Admin Status (-as) Enable •Client Aging Time (-at) 60 •Dispatch Method (-dm) Hashing •Connectivity Method (-cm) Disable •Sessions Mode (-sm) RemoveOnSessionEnd-SPS •Redundancy Mode (-fm) Primary / Backup • Extended Farm Parameters •SIP port (-sip) 5060
    • Health-Check Parameters •Health Check Parameters •Check Name CHK-CMS1 •Method (-m) SIP UDP •Destination (-d) 10.1.2.9 (Farm IP) •Next HOP (-h) 172.17.4.11 (Server IP) •Port (-p) 5060 (SIP Port) •Interval (-i) 10 •Retries (-r) 3 •Timeout (-t) 3 •Arguments (-a), Listed below •URI 10.1.2.9 (Farm IP) •FROM 172.17.4.6 (Interface IP) •Forward 70 •C1 200
    • Persistency Parameters •Persistency Parameters •Farm IP 10.1.2.9 (Farm IP) •Port 5060 •Protocol UDP •Key (-k) Call-ID •Timeout (-t) 1800 seconds •Lookup Mode (-l) Header •Learning Direction (-d) Both Directions
    • Configuration Methods  Console  Configware Insite  WEB
    • Important Debug Commands  System device-info
    • Important Debug Commands Cont.  net ip-interface
    • Important Debug Commands Cont.  net route table
    • Important Debug Commands Cont.  wsd farm table
    • Important Debug Commands Cont.  wsd farm server table
    • Important Debug Commands Cont.  Health-monitoring check
    • Important Debug Commands Cont.  Health-monitoring binding
    • Important Debug Commands Cont.  System internal wsd session-id-info
    • Summary