39 lines
1.8 KiB
Plaintext
39 lines
1.8 KiB
Plaintext
msc {
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hscale="2";
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pcu [label="PCU"], sgsn [label="SGSN"];
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|||;
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pcu rbox sgsn [label="(1) Initial Configuration after [re] start of PCU with NSEI 1024"];
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--- [label="SNS-Size procedure to inform SGSN of PCU NS-VC capacity"];
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pcu -> sgsn [label="SNS-SIZE (NSEI=1234, MAX-NR-NSVCS=8, NUM-IP-EP=1)"];
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pcu <- sgsn [label="SNS-SIZE-ACK (NSEI=1234)"];
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--- [label="PCU-originated SNS-CONFIG: Configure SGSN downlink flows"];
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pcu -> sgsn [label="SNS-CONFIG (NSEI=1234, List of PCU side IPv4/IPv6 Elements)"];
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pcu <- sgsn [label="SNS-CONFIG-ACK"];
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--- [label="SGSN-originated SNS-CONFIG: Configure PCU uplink flows"];
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pcu <- sgsn [label="SNS-CONFIG (NSEI=1234, List of SGSN side IPv4/IPv6 Elements)"];
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pcu -> sgsn [label="SNS-CONFIG-ACK"];
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|||;
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pcu rbox sgsn [label="(2) Establishment of full mesh of NS-VCs: Each PCU side EP to each SGSN side EP"];
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--- [label="NS-ALIVE procedure to the first SGSN-side IPv4 Endpoint"];
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pcu -> sgsn [label="NS-ALIVE"];
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pcu <- sgsn [label="NS-ALIVE-ACK"];
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--- [label="NS-ALIVE procedure to the second SGSN-side IPv4 Endpoint"];
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pcu -> sgsn [label="NS-ALIVE"];
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pcu <- sgsn [label="NS-ALIVE-ACK"];
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|||;
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pcu rbox sgsn [label="(3) Establishment of BSGGP Virtual Connections (BVC)"];
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--- [label="BVC-RESET of the (PCU global) Signaling BVC"];
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pcu -> sgsn [label="NS-UNITDATA( BVC-RESET (BVCI=0) )"];
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pcu <- sgsn [label="NS-UNITDATA( BVC-RESET-ACK (BVCI=0) )"];
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|||;
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--- [label="BVC-RESET of the PTP BVC of the first cell in the BSS"];
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pcu -> sgsn [label="NS-UNITDATA( BVC-RESET (BVCI=999, RA-ID 262-42-13135-0) )"];
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pcu <- sgsn [label="NS-UNITDATA( BVC-RESET-ACK (BVCI=999) )"];
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...;
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--- [label="BVC-RESET of the PTP BVC of the Nth cell in the BSS"];
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pcu -> sgsn [label="NS-UNITDATA( BVC-RESET (BVCI=543, RA-ID 262-42-24675-0) )"];
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pcu <- sgsn [label="NS-UNITDATA( BVC-RESET-ACK (BVCI=543) )"];
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}
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