Ericsson SPR1100 Operations Instructions download pdf (Page 185)

Stream Processing and Networking

If both control ports have a link up, and Control Port Selection is set to Automatic

Redundant, the primary port will respond to network traffic but the spare port will

not. However, if the link goes down on the primary port, then the spare port will start

to respond to network traffic.

6.4.1.1 Automatic Redundancy Mode

In Automatic Redundancy Mode the

primary port is used as default. If the primary

port link fails, control passes to the secondary port. However, if the primary port link

is restored then control passes back to the primary after the Auto-Revert delay

period.

The behavior of the system when the primary link is re-established depends on the

Control Port Auto-Revert Time setting.

If the Control Port Auto-Revert Time is set to 0, then the spare port remains the

active control port until its link goes down.

Otherwise, after the primary port has had a link present for the defined period of

time, it will resume being the active control port, and the spare port will cease

outputting to network traffic.

6.4.1.1.1 Auto-Revert Delay

If the control port select

ion is Automatic, then the Auto-Revert Delay defines the

period for which the primary port must have resumed a link up state before it

automatically reverts to being the active port.

The Auto-Revert Delay period is set in the range 0 to 999 seconds, with 2 seconds

being the default value.

If this is set to 0 then there is no automatic switch back to the primary port.

6.4.2 Data Network Redundancy

The SPR1100 has two Ethernet data ports operating as paired outputs. These are

designated Ge 3 and Ge 4.

Each port may have a different IP address, MAC address, subnet mask and default

gateway, providing output network redundancy. Only one port is active at any time,

with the other port in Standby mode. If the Active interface should fail, the Standby

interface takes over.

If both ports are configured to be on the same subnet, only one port will respond to

ICMP messages.

The data ports can raise an alarm during abnormal operational conditions, see

Chapter 8, Preventive Maintenance and Fault-finding.

2/1553-FGC 101 1400 Uen B

6-15

1 2 ... 180 181 182 183 184 185 186 187 188 189 190 ... 299 300

No comments

Ericsson SPR1100 Operations Instructions Page 185