Spectracom NetClock 9400 Series, Руководство пользователя

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Main Routing Table : This routing table is used when network traffic is generated from
the server. It will generally have the same default gateway as the routing table for eth0 ,
unless configured otherwise.
Interface Routing Tables : These routing tables are specific to each interface. They are
named t0 (for eth0 interface) though t3 (for eth3 interface).
The system is configured by default with rules to use the individual routing table for each
interface for all network traffic being received or transmitted from or to the cor
responding interface. For example, when an NTP request is received on interface
eth2
, it
is tagged as such and the response will use routing table t2 when sending the NTP
response packet.
Each routing table has a default gateway that is used when there is no explicit routing
table entry that matches the destination address for a given network packet.
For information on configuring routing tables see "Static Routes" on page 64, and see Spec
tracom Tech Note
Routing of data across multiple networks
.
Domains and Domain Name Servers (DNS)
Each network interface may exist on a separate domain and therefore have a different domain
name and domain name servers from the other interfaces.
The system supports a single domain name and up to 2 DNS addresses per network interface.
These may be assigned via DHCP or configured manually via the Web UI configuration screen
for each network interface.
Configuring Ethernet Ports
For information on configuring Ethernet ports, see "Network Ports" on page 59.
5.2.6 T1/E1 Out Module [Option 13]
The E1/T1 option modules provide 1.544 MHz or 2.048 MHz and E1 or T1 data outputs for
the NetClock platform (NetClock 9483 only). NetClock meets G.812 Type I when installed with
a Rubidium option, and G.811 when installed with a Rubidium option and synchronized with
GNSS.
Note: Rubidium oscillators are recommended for the E1/T1 option module.
NetClock User Reference Guide 361
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