In the MML Command - ugw window of the vUGW, run the following command to add an APN:

ADD APN:APN=APN of eCNS280B;

SET APNDNS: APN=APN of eCNS280B, MDNSSERVERV4=Primary DNS server IPv4 address, BDNSSERVERV4=Secondary DNS server IPv4 address;

SET APNREPORTATTR: APN=APN of eCNS280B;

In the MML Command - ugw window of the vUGW, run the following command to add IP address pool configurations:

ADD POOL: POOLNAME=IP address pool of eCNS280A;

ADD POOLBINDAPN: APN=APN of eCNS280B, POOLNAME=IP address pool name of eCNS280A;

ADD SECTION: POOLNAME=IP address pool name of eCNS280A, SECTIONNUM=IP address segment number, IPVERSION=IP address type, V4STARTIP=Starting IPv4 address of eCNS280A's address segment, and V4ENDIP=Ending IPv4 address of eCNS280A's address segment;

ADD IPV4DNSH:HSINDEX=Host name index, HOSTNAME=Host name, ADDRSECTION=IP address segment, IPV4ADDR1=IP address of the S5/S8 interface of the PGW on eCNS280A

HSINDEX in ADD IPV4DNSH corresponds to HSINDEX in ADD DNSN.

1. Configure S6a interface basic data.

   In the MML Command - vnrs window of the vUSN, run the following command:

   SET BFD: BFDENABLE=TRUE;

   SET AUTOCONFIG:SWITCHFLAG=FALSE;

   ADD AUTOSCALINGSERVICE:SERVICENAME=Service name,AFTYPE=IPv4,IPALLOCTYPE4=USER_CONFIG,VNICID=VNIC ID,VLANID=VLAN ID,BEGINADDR4=Begin address,ENDADDR4=End address;

   ADD AUTOSCALINGSRBFD: SERVICENAME=Service name;

   ADD AUTOSCALINGSRROUTE: SERVICENAME=Service name, IPVERSION=IPv4, PREFIX4=Route prefix IPv4, MASKLENGTH=32, NEXTHOPALLOCTYPE4=CONFIG, NEXTHOP4=Route next hop IPv4, BFDENABLE=TRUE;

   SET AUTOCONFIG:SWITCHFLAG=TRUE;

2. Configure parameters related to the service IP address.

   In the MML Command - omo window of the vUSN, run the following command:

   ADD SERVICEIP:IPVERSION=IPv4, SERVICEIPV4=Service IPv4 address of eCNS280A;

3. Configure SCTP link parameters.
   

   Run LST SCTPPARA to check whether SCTP protocol parameters exist.Skip this step if these parameters have already been configured.

   In the MML Command - omo window, run the following command:

   ADD SCTPPARA:SCTPPARAINDEX=SCTP protocol parameter index;

4. Set S6a parameters with NETYPE of MME on the local end.Configure this parameter when eCNS280B users need to roam to eCNS280A.
   1. Configure local Diameter information.
      

      Run LST DMLE to check whether the local Diameter entity exists. If yes, use the existing local Diameter entity information and skip this step.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLE: LOINDEX=Local entity index, LOHSTNAME=Local entity host name, LORLMNAME=Local entity realm name, NETYPE=MME, LOINFONAME=Local entity name;

   2. Configure the peer Diameter information.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMPE: PEERIDX=Peer entity index, PEERHTNAM=Peer host name, PEERNAM=Peer entity name;

   3. Configure the Diameter link set.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLKS: LINKSIDX=Link set index, LOCALIDX=Local entity index, PEERIDX=Peer entity index, LSSELMODE=Route selection mode, LINKSNAM=Link set name;

   4. Configure the Diameter link.

      In the MML Command - omo window of the vUSN, run the following command:

      

      • One end of the link must function as the server and the other end as the client.
      • Port numbers of two same Diameter links must be different.

      ADD DMLNK: LINKIDX=Link index, IPTYPE=IP address type, PROTOTYPE=Protocol type, LOCALIPV4_1=Local IPv4 address 1, LOCALPORT=Local port number, PEERIPV4_1=Peer IPv4 address 1, PEERPORT=Peer port number, CLIORSER=DIAM_CONN_SERVER, LINKSIDX=Diameter link set index, SCTPINDX=SCTPPARAINDEX in ADD SCTPPARA, LINKNAM=Link name;

   5. Configure a Diameter host route and add the host route to the route group.
      1. Configure a Diameter host route.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMHOSTRT: ROUTEIDX=Route index, APPNAM=Application name, RSELMODE=Route selection mode, PEERSEL=PEER_INDEX,PEERIDX=Peer entity index;

      2. Configure a Diameter route group.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMRTGRP: GRPIDX=Route group index, RTMODE=HOST_NAME_ROUTE, RTPRIMODE=HOST_NAME_ROUTE_PREFER, ROUTEIDX=Route index, ROUTEGRPNAM=Route group name;

5. Set S6a parameters with NETYPE of HSS on the local end.Configure this parameter when eCNS280A users need to roam to eCNS280B.
   1. Configure local Diameter information.
      

      Run LST DMLE to check whether the local Diameter entity exists. If yes, use the existing local Diameter entity information and skip this step.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLE: LOINDEX=Local entity index, LOHSTNAME=Local entity host name, LORLMNAME=Local entity realm name, NETYPE=HSS, LOINFONAME=Local entity name;

   2. Configure the peer Diameter information.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMPE: PEERIDX=Peer entity index, PEERHTNAM=Peer host name, PEERNAM=Peer entity name;

   3. Configure the Diameter link set.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLKS: LINKSIDX=Link set index, LOCALIDX=Local entity index, PEERIDX=Peer entity index, LSSELMODE=Route selection mode, LINKSNAM=Link set name;

   4. Configure the Diameter link.

      In the MML Command - omo window of the vUSN, run the following command:

      

      • One end of the link must function as the server and the other end as the client.
      • Port numbers of two same Diameter links must be different.

      ADD DMLNK: LINKIDX=Link index, IPTYPE=IP address type, LOCALIPV4_1=Local IPv4 address 1, LOCALPORT=Local port number, PEERIPV4_1=Peer IPv4 address 1, PEERPORT=Peer port number, CLIORSER=DIAM_CONN_CLIENT, LINKSIDX=Diameter link set index, SCTPINDX=SCTPPARAINDEX in ADD SCTPPARA, LINKNAM=Link name;

   5. Configure a Diameter host route and add the host route to the route group.
      1. Configure a Diameter host route.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMHOSTRT: ROUTEIDX=Route index, APPNAM=Application name, RSELMODE=Route selection mode, PEERSEL=PEER_INDEX,PEERIDX=Peer entity index;

      2. Configure a Diameter route group.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMRTGRP: GRPIDX=Route group index, RTMODE=HOST_NAME_ROUTE, RTPRIMODE=HOST_NAME_ROUTE_PREFER, ROUTEIDX=Route index, ROUTEGRPNAM=Route group name;

The user can find the HSS to which the IMSI belongs based on the mapping.

• It is recommended that the IMSI number segment configured in this step do not overlap with that in the LocalSub feature (The IMSI number segment can be queried by running LST HIMSISEG).
• If they are overlapped, the system selects the HSS based on the priority configured in the IMSI segment of the LocalSub feature. Modify the priority based on the site requirements.
• Ensure that the user registration information is available in the preferred HSS (external HSS or embedded HSS).
• The number segments of roaming users cannot be included in those of local users.
• The parameter IMSIPRE matches the IMSI of users to distinguish different user groups. You need to determine the HSS onto which an IMSI prefix is mapped based on the maximum matching principle.

In the MML Command - omo window of the vUSN, run the following command:

ADD IMSIHSS:IMSIPRE=IMSI number segment of eCNS280B users, HSSRLM=HSS domain name, GRPIDX=GRPIDX configured in ADD DMRTGRP;

If the core network B and core network A are in different PLMNs, an interworking PLMN must be configured in the core network A.

Roaming users can access the eCN only when their VPLMNs are in the interworking PLMN table.

In the MML Command - omo window of the vUSN, run the following command:

ADD CONNECTPLMN: MCC=Mobile country code, MNC=Mobile network code, MATCHIMSI=Matched IMSI, CC=Country code, COUNTRYORAREANAME=Operator name;

Configure these parameters as follows:

• MCC: Set this parameter to the mobile country code of the core network B PLMN.
• MNC: Set this parameter to the mobile network code of the core network B PLMN.
• MATCHIMSI: Set this parameter to the part except the MCC and MNC in the IMSI field.

After the PLMNs are matched based on the MCC and the MNC, this parameter is used to match a record based on the forward maximum rule.

• CC: Set this parameter to the country code (CC) of the core network B PLMN.
• COUNTRYORAREANAME: Set this parameter to name of the core network B PLMN operator.

In the MML Command - ugw window of the vUGW, run the following command to add an APN:

ADD APN:APN=APN of eCNS280A;

SET APNDNS: APN=APN of eCNS280A, MDNSSERVERV4=Primary DNS server IPv4 address, BDNSSERVERV4=Secondary DNS server IPv4 address;

SET APNREPORTATTR: APN=APN of eCNS280A;

In the MML Command - ugw window of the vUGW, run the following command to add IP address pool configurations:

ADD POOL: POOLNAME=IP address pool of eCNS280B;

ADD POOLBINDAPN: APN=APN of eCNS280A, POOLNAME=IP address pool name of eCNS280B;

ADD SECTION: POOLNAME=IP address pool name of eCNS280B, SECTIONNUM=IP address segment number, IPVERSION=IP address type, V4STARTIP=Starting IPv4 address of eCNS280B's address segment, and V4ENDIP=Ending IPv4 address of eCNS280B's address segment;

• HSINDEX in ADD IPV4DNSH corresponds to HSINDEX in ADD DNSN.
• If the core network B and core network A are in different PLMNs, set the INTYPE to S8 in ADD DNSN.
• If the core network B and core network A are in the same PLMN, set the INTYPE to S5 in ADD DNSN.

ADD IPV4DNSH:HSINDEX=Host name index, HOSTNAME=Host name, ADDRSECTION=IP address segment, IPV4ADDR1=IP address of the S5/S8 interface of the PGW on eCNS280B

ADD DNSN:FQDN=FQDN,HSINDEX=Host name index, ENTITY=NE type, INTYPE=Interface type, S5PROTOCOL=S5 interface protocol type;

1. Configure S6a interface basic data.

   In the MML Command - vnrs window of the vUSN, run the following command:

   SET BFD: BFDENABLE=TRUE;

   SET AUTOCONFIG:SWITCHFLAG=FALSE;

   ADD AUTOSCALINGSERVICE:SERVICENAME=Service name,AFTYPE=IPv4,IPALLOCTYPE4=USER_CONFIG,VNICID=VNIC ID,VLANID=VLAN ID,BEGINADDR4=Begin address,ENDADDR4=End address;

   ADD AUTOSCALINGSRBFD: SERVICENAME=Service name;

   ADD AUTOSCALINGSRROUTE: SERVICENAME=Service name, IPVERSION=IPv4, PREFIX4=Route prefix IPv4, MASKLENGTH=32, NEXTHOPALLOCTYPE4=CONFIG, NEXTHOP4=Route next hop IPv4, BFDENABLE=TRUE;

   SET AUTOCONFIG:SWITCHFLAG=TRUE;

2. Configure parameters related to the service IP address.

   In the MML Command - omo window of the vUSN, run the following command:

   ADD SERVICEIP:IPVERSION=IPv4, SERVICEIPV4=Service IPv4 address of eCNS280B;

3. Configure SCTP link parameters.
   

   Run LST SCTPPARA to check whether SCTP protocol parameters exist.Skip this step if these parameters have already been configured.

   In the MML Command - omo window, run the following command:

   ADD SCTPPARA:SCTPPARAINDEX=SCTP protocol parameter index;

4. Set S6a parameters with NETYPE of HSS on the local end.Configure this parameter when eCNS280B users need to roam to eCNS280A.
   1. Configure local Diameter information.
      

      Run LST DMLE to check whether the local Diameter entity exists. If yes, use the existing local Diameter entity information and skip this step.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLE: LOINDEX=Local entity index, LOHSTNAME=Local entity host name, LORLMNAME=Local entity realm name, NETYPE=HSS, LOINFONAME=Local entity name;

   2. Configure the peer Diameter information.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMPE: PEERIDX=Peer entity index, PEERHTNAM=Peer host name, PEERNAM=Peer entity name;

   3. Configure the Diameter link set.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLKS: LINKSIDX=Link set index, LOCALIDX=Local entity index, PEERIDX=Peer entity index, LSSELMODE=Route selection mode, LINKSNAM=Link set name;

   4. Configure the Diameter link.

      In the MML Command - omo window of the vUSN, run the following command:

      

      • One end of the link must function as the server and the other end as the client.
      • Port numbers of two same Diameter links must be different.

      ADD DMLNK: LINKIDX=Link index, IPTYPE=IP address type, PROTOTYPE=Protocol type, LOCALIPV4_1=Local IPv4 address 1, LOCALPORT=Local port number, PEERIPV4_1=Peer IPv4 address 1, PEERPORT=Peer port number, CLIORSER=DIAM_CONN_CLIENT, LINKSIDX=Diameter link set index, SCTPINDX=SCTPPARAINDEX in ADD SCTPPARA, LINKNAM=Link name;

   5. Configure a Diameter host route and add the host route to the route group.
      1. Configure a Diameter host route.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMHOSTRT: ROUTEIDX=Route index, APPNAM=Application name, RSELMODE=Route selection mode, PEERSEL=PEER_INDEX,PEERIDX=Peer entity index;

      2. Configure a Diameter route group.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMRTGRP: GRPIDX=Route group index, RTMODE=HOST_NAME_ROUTE, RTPRIMODE=HOST_NAME_ROUTE_PREFER, ROUTEIDX=Route index, ROUTEGRPNAM=Route group name;

5. Set S6a parameters with NETYPE of MME on the local end.Configure this parameter when eCNS280A users need to roam to eCNS280B.
   1. Configure local Diameter information.
      

      Run LST DMLE to check whether the local Diameter entity exists. If yes, use the existing local Diameter entity information and skip this step.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLE: LOINDEX=Local entity index, LOHSTNAME=Local entity host name, LORLMNAME=Local entity realm name, NETYPE=MME, LOINFONAME=Local entity name;

   2. Configure the peer Diameter information.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMPE: PEERIDX=Peer entity index, PEERHTNAM=Peer host name, PEERNAM=Peer entity name;

   3. Configure the Diameter link set.

      In the MML Command - omo window of the vUSN, run the following command:

      ADD DMLKS: LINKSIDX=Link set index, LOCALIDX=Local entity index, PEERIDX=Peer entity index, LSSELMODE=Route selection mode, LINKSNAM=Link set name;

   4. Configure the Diameter link.

      In the MML Command - omo window of the vUSN, run the following command:

      

      • One end of the link must function as the server and the other end as the client.
      • Port numbers of two same Diameter links must be different.

      ADD DMLNK: LINKIDX=Link index, IPTYPE=IP address type, LOCALIPV4_1=Local IPv4 address 1, LOCALPORT=Local port number, PEERIPV4_1=Peer IPv4 address 1, PEERPORT=Peer port number, CLIORSER=DIAM_CONN_SERVER, LINKSIDX=Diameter link set index, SCTPINDX=SCTPPARAINDEX in ADD SCTPPARA, LINKNAM=Link name;

   5. Configure a Diameter host route and add the host route to the route group.
      1. Configure a Diameter host route.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMHOSTRT: ROUTEIDX=Route index, APPNAM=Application name, RSELMODE=Route selection mode, PEERSEL=PEER_INDEX,PEERIDX=Peer entity index;

      2. Configure a Diameter route group.

         In the MML Command - omo window of the vUSN, run the following command:

         ADD DMRTGRP: GRPIDX=Route group index, RTMODE=HOST_NAME_ROUTE, RTPRIMODE=HOST_NAME_ROUTE_PREFER, ROUTEIDX=Route index, ROUTEGRPNAM=Route group name;

The user can find the HSS to which the IMSI belongs based on the mapping.

• It is recommended that the IMSI number segment configured in this step do not overlap with that in the LocalSub feature (The IMSI number segment can be queried by running LST HIMSISEG).
• If they are overlapped, the system selects the HSS based on the priority configured in the IMSI segment of the LocalSub feature. Modify the priority based on the site requirements.
• Ensure that the user registration information is available in the preferred HSS (external HSS or embedded HSS).
• The number segments of roaming users cannot be included in those of local users.
• The parameter IMSIPRE matches the IMSI of users to distinguish different user groups. You need to determine the HSS onto which an IMSI prefix is mapped based on the maximum matching principle.

In the MML Command - omo window of the vUSN, run the following command:

ADD IMSIHSS:IMSIPRE=IMSI number segment of eCNS280A users, HSSRLM=HSS domain name, GRPIDX=GRPIDX configured in ADD DMRTGRP;

If the core network A and core network B are in different PLMNs, an interworking PLMN must be configured in the core network B.

Roaming users can access the eCN only when their VPLMNs are in the interworking PLMN table.

In the MML Command - omo window of the vUSN, run the following command:

ADD CONNECTPLMN: MCC=Mobile country code, MNC=Mobile network code, MATCHIMSI=Matched IMSI, CC=Country code, COUNTRYORAREANAME=Operator name;

Configure these parameters as follows:

• MCC: Set this parameter to the mobile country code of the core network A PLMN.
• MNC: Set this parameter to the mobile network code of the core network A PLMN.
• MATCHIMSI: Set this parameter to the part except the MCC and MNC in the IMSI field.

After the PLMNs are matched based on the MCC and the MNC, this parameter is used to match a record based on the forward maximum rule.

• CC: Set this parameter to the country code (CC) of the core network A PLMN.
• COUNTRYORAREANAME: Set this parameter to name of the core network A PLMN operator.