Installation guide

A Sample VLAN Topology
A Sample VLAN Topology
Chapter 7
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monitors the network links that are set up for failover operation. The dhcpd daemon process enables the
sibling Switch Blade to establish communication with the first Switch Blade to retrieve its surviving partner
configuration file. These daemon processes can be seen by running the ps command on the Switch Blade:
ps -efw
root 19577 /usr/sbin/vrrpd -d 100m -c
/etc/rcZ.d/surviving_partner/vrrpd.conf
root 19579 /usr/sbin/vrrpd -d 100m -c
/etc/rcZ.d/surviving_partner/vrrpd.conf
root 19641 dhcpd -cf /etc/rcZ.d/surviving_partner/dhcpd.conf zhp0
You can see that the Switch Blade is running in Master mode by entering the vrrpconfig command:
vrrpconfig -a
IF State ID Interconnect Interval Prior AddrCnt IpAddrs
---------------------------------------------------------------------
zhp1 M 2 zhp0 100 224 1 10.35.50.41
zhp3 M 4 zhp0 100 224 1 192.168.0.43
A state designated as M stands for Master. A state designated as B stands for Backup. In order to complete
the installation of the surviving partner software, you must log onto the sibling Switch Blade and enter the
following command:
zspconfig -u zhp3 # Where zhp3 is the vlan that contains the
# ISL interface (zre23). If the sibling
# Switch Blade has not been configured at all,
# use zhp0.
Here, zspconfig locates the first Switch Blade via dhcp requests, and proceeds to download its
already-prepared zsp.conf configuration file (which is located in /tftpboot on the first Switch Blade), and
process it. The result is a new S70Surviving_partner startup script for the sibling Switch Blade. After
running zspconfig, the sibling Switch Blade is now running vrrpd, with an installation of the surviving
partner software in Backup mode. After completing this step on the sibling Switch Blade, do not forget to
move any user-created rc scripts out of the way, as you did on the first Switch Blade, as follows:
mv /etc/rcZ.d/S21cross-shmm /etc/rcZ.d/off.S21cross-shmm
mv /etc/rcZ.d/S22mgmt /etc/rcZ.d/off.S22mgmt
mv /etc/rcZ.d/S23base /etc/rcZ.d/off.S23base
mv /etc/rcZ.d/S24isl /etc/rcZ.d/off.S24isl
Now issue the vrrpconfig command to see the HA status of the sibling Switch Blade:
vrrpconfig -a
IF State ID Interconnect Interval Prior AddrCnt IpAddrs
---------------------------------------------------------------------
zhp1 B 2 zhp0 100 224 1 10.35.50.42