Networking overview 29
VLAN interfaces are named according to the following syntax:
<hosting_interface>.<vlan_id>
The AS 5300 server defines the VLAN interfaces to be hosted by the logical bond0 interface. Figure 3 "Typical
28)shows a VLAN interface named bond0.170, which belongs to the VLAN with ID 170, and the VLAN interface bond0.1265, which belongs to the VLAN with ID 1265. It is on these logical VLAN interfaces that the machine logical IP addresses of the Service and Maintenance VLANs are configured (one for each VLAN). Software applications are concerned only with these logical VLAN interfaces.
Nortel does not recommend
Consult the Information Planning Sheet for details about network settings.
Network Time Protocol
Two Element Manager servers (EMS) serve as Network Time Protocol (NTP) clock sources for the Network Element servers (NES) in the AS 5300 system. You can configure the two EMS servers to receive their clock information from their internal system clocks or from external sources. It is recommended that you configure the servers to receive their clock information from external sources so that all of the servers in the system are synchronized with each other as well as with global clock sources.
If you configure the EMS servers to use their internal clocks as the system time source, the system is synchronized internally but has no synchronization with global clock sources.
In addition to being configured to use internal or external clock sources, the EMS servers maintain time synchronization with each other.
The NTP protocol is not secure. You can secure NTP traffic using symmetric keys for server authentication or by configuring the IPSec mesh. Symmetric keys are stored in a key file on both the client and clock source server. Modify the Network Time Protocol configuration file to specify which key in the key file to use. In
Application Server 5300
Nortel AS 5300 Installation
4 November 2008
