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2. ## Mapping the External Network Configuration of a Node This section describes how to create a map of the external network configuration of a peer node. For further information about external addresses, see "External Addressing and Networking" in Netra High Availability Suite Foundation Services 2.1 6/03 Overview. ### To Examine Interfaces Configured for External Communication Use this procedure to determine whether a node is configured for external communication. Log in to the node whose network interfaces you want to examine. Run the `ifconfig` command:
       # ifconfig -a
   The `ifconfig` command displays configuration information about the network interfaces of a node. The following output is for a diskless or a dataless node using the class C addressing scheme, and configured for external communication through additional logical interfaces.
       hme0: flags=1004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 1500 \
       index 1
               inet 10.250.1.30 netmask ffffff00 broadcast 10.250.1.255
               ether 8:0:20:f9:b4:b0
       lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 2
               inet 127.0.0.1 netmask ff000000
       hme0:100: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 \
       index 2
               inet 172.36.128.51 netmask ffffff00 broadcast 172.36.128.255
       hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
               inet 10.250.2.30 netmask ffffff00 broadcast 10.250.2.255
               ether 8:0:20:f9:b4:b1
       cgtp0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4
               inet 10.250.3.30 netmask ffffff00 broadcast 10.250.3.255
               ether 0:0:0:0:0:0
2. Search in the output of Step 2 for an interface to an external network. In this example, the logical interface `hme0:100` is an additional interface configured for external addressing. ## Mapping the Floating Address Triplet of the Master Node The master node and vice-master node have three interfaces for the floating address triplet. For example, `NIC0:1`, `NIC1:1`, and `cgtp0:1`. The interfaces are assigned to the master node and vice-master node, but are configured as up on the master node only. If a switchover or failover occurs, the floating address triplet is configured down on the old master node and up on the new master node. For more information, see "Cluster Addressing and Networking" in the Netra High Availability Suite Foundation Services 2.1 6/03 Overview. ### To Map the Floating Address Triplet of the Master Node Log in to a peer node. Identify the master node:
       # nhcmmstat all
4. The `nhcmmstat` command also displays information in the console window about each peer node. Log in to the master node as superuser. Run:
       # ifconfig -a
   For a node using the class C addressing scheme, output similar to this is displayed:
       lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
                inet 127.0.0.1 netmask ff000000
       hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
                inet 10.98.1.11 netmask ffffff00 broadcast 10.98.1.255
                ether 8:0:20:da:7d:9c
       hme0:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 2
                inet 10.98.1.1 netmask ffffff00 broadcast 10.98.1.255
       hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
                inet 10.98.2.11 netmask ffffff00 broadcast 10.98.2.255
                ether 8:0:20:da:7d:9d
       hme1:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 3
                inet 10.98.2.1 netmask ffffff00 broadcast 10.98.2.255
       cgtp0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4
                inet 10.98.3.11 netmask ffffff00 broadcast 10.98.3.255
                ether 0:0:0:0:0:0
       cgtp0:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 4
                inet 10.98.3.1 netmask ffffff00 broadcast 10.98.3.255
6. The floating address triplet has the logical interfaces `hme0:1`, `hme1:1`, and `cgtp0:1`. Note the IP addresses and netmask of the interfaces for the floating address triplet. Log in to the vice-master node as superuser. Repeat Step 4. Output similar to this is displayed:
       lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv> mtu 8232 index 1
                inet 127.0.0.1 netmask ff000000
       hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 \
       index 2
                inet 10.98.1.10 netmask ffffff00 broadcast 10.98.1.255
                ether 8:0:20:da:8f:c6
       hme0:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 2
                inet 10.98.1.1 netmask ffffff00 broadcast 10.98.1.255
       hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
                inet 10.98.2.10 netmask ffffff00 broadcast 10.98.2.255
                ether 8:0:20:da:8f:c7
       hme1:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 3
                inet 10.98.2.1 netmask ffffff00 broadcast 10.98.2.255
       cgtp0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4
                inet 10.98.3.10 netmask ffffff00 broadcast 10.98.3.255
                ether 0:0:0:0:0:0
       cgtp0:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 4
                inet 10.98.3.1 netmask ffffff00 broadcast 10.98.3.255
2. Note - Note that the `hme0:1`, `hme1:1`, and `cgtp0:1` interfaces of the vice-master are configured but are not marked `UP`. ## Mapping the Floating External Address of the Master Node The Node State Manager (NSM) assigns an external IP address to one interface on the master node. This address is called the floating external address. To examine the floating external address, perform the following procedure. ### To Map the Floating External Address of the Master Node Log in to a peer node. Identify the master node:
       # nhcmmstat all
4. The `nhcmmstat` command also displays information about each peer node to the console window. Log in to the master node. Verify that the NSM has been configured in the `nhfs.conf` file. For a node using the class C addressing scheme, the NSM configuration is like this:
       NSM.Exec.Masterdir=/opt/SUNWcgha/actions/master
       NSM.Exec.Vicemasterdir=/opt/SUNWcgha/actions/vicemaster
       NSM.Log.Masterdir=/var/adm/log/SUNWcgha/nsm_master
       NSM.Log.Vicemasterdir=/var/adm/log/SUNWcgha/nsm_vicemaster
       NSM.External.Master.Address=172.36.128.5
       NSM.External.Master.Nic=hme0:101
5. In this example, a floating external address is configured on the master node. The floating external address is assigned to the logical interface `hme0:101`, and has the external IP address `172.36.128.5`. After failover or switchover, the floating external address is configured on the new master node. Run the `ifconfig` command on the master node:
       # ifconfig -a
   Output similar to this is displayed:
       lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
               inet 127.0.0.1 netmask ff000000
       hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
               inet 10.250.1.20 netmask ffffff00 broadcast 10.250.1.255
               ether 8:0:20:f9:b3:6a
       hme0:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 2
               inet 10.250.1.1 netmask ffffff00 broadcast 10.250.1.255
       hme0:101: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> \
       mtu 1500 index 2
       			inet 172.36.128.5 netmask ffffff00 broadcast 172.36.128.255
       hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
               inet 10.250.2.20 netmask ffffff00 broadcast 10.250.2.255
               ether 8:0:20:f9:b3:6b
       hme1:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 3
               inet 10.250.2.1 netmask ffffff00 broadcast 10.250.2.255
       cgtp0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4
               inet 10.250.3.20 netmask ffffff00 broadcast 10.250.3.255
               ether 0:0:0:0:0:0
       cgtp0:1: flags=1040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> \
       mtu 1500 index 4
               inet 10.250.3.1 netmask ffffff00 broadcast 10.250.3.255
6. This output shows the `hme0:101` interface as configured in the `nhfs.conf` file. Run the `ifconfig` command on the vice-master node:
       # ifconfig -a
   Output similar to this is displayed:
       lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv> mtu 8232 index 1
                inet 127.0.0.1 netmask ff000000
       hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
                inet 10.98.1.10 netmask ffffff00 broadcast 10.98.1.255
                ether 8:0:20:da:8f:c6
       hme0:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 2
                inet 10.98.1.1 netmask ffffff00 broadcast 10.98.1.255
       hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
                inet 10.98.2.10 netmask ffffff00 broadcast 10.98.2.255
                ether 8:0:20:da:8f:c7
       hme1:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 3
                inet 10.98.2.1 netmask ffffff00 broadcast 10.98.2.255
       cgtp0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4
                inet 10.98.3.10 netmask ffffff00 broadcast 10.98.3.255
                ether 0:0:0:0:0:0
       cgtp0:1: flags=1040842<BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4> mtu \
       1500 index 4
                inet 10.98.3.1 netmask ffffff00 broadcast 10.98.3.255
This output shows that there is no floating external address on the vice-master node.
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