Nvg Hardware; Virtual Ip Addresses - Nortel 3050 Troubleshooting Manual

12 Troubleshooting Fundamentals
Table 5 "Interpreting an TCP traffic dump" (page 12)
about TCP dump entry and its description.
Table 5
Interpreting an TCP traffic dump
Dump entry
<ID number> IP <source IP and port>>
<destination IP and port>: <flags><data
sequence number> ack <sequence number
of next data> win <window number> Urg <tcp
options>

NVG hardware

This section provides information to troubleshoot problems related to the
Nortel VPN Gateway hardware components.
Table 6 "Front Panel LEDs" (page 12)
indicators on the VPN Gateway.
Table 6
Front Panel LEDs
LED Indicator (from left to right)
Amber system status LED
Hard-disk drive activity LED
System power LED
ATTENTION
Call Nortel for RMA if Amber System status LED can not be cleared.

Virtual IP addresses

In instances where virtual IP addresses are used without an external load
balancer, ensure that the effected services are set to standalone mode.
Copyright © 2007 Nortel Networks
.
Description
It is a TCP connection between a source and
destination. Flag values are S (SYN), F (FIN), P
(PUSH), R (RST), or a single period (no falgs).
The data sequence space covered by the data
in this packet. Ack is the sequence number of
the next data expected in the other direction on
this connection. Window number is the number
of bytes of receive buffer space available in the
other direction on this connection. Urg indicates
there is urgent data in the packet. TCP options
are enclosed in angle brackets.
Nortel VPN Gateway
Troubleshooting Guide
NN46120-700 01.01 Standard
12 October 2007
gives the information
describes the Front Panel LED
Description
The amber system status LED lights
up when the system needs attention
due to a problem with power supplies,
fans, CPU, or system temperature.
This LED blinks when activity is
detected on the hard-disk drive.
This LED is green when the power
supply is turned on.