Network Instruments GigaStor 114ff - Manual (Page 34)

Configuring Observer for your WAN device
Chapter 2 Installing Your GigaStor 34
rev. 1
Digital DS3/E3/HSSI Probe Settings
To access the probe settings, select the probe, right-click and choose
Probe or Device Settings. Then click the DS3/E3/HSSI tab
(Figure 21).
Figure 21 DS3/E3/HSSI Probe Settings
Table 1 describes fields in Figure 21.
Table 1 DS3/E3/HSSI probe settings
Setting Explanation
WAN Type Choose DS3 (T3), E3 or HSSI to match the type of link you are analyzing, then
choose the frame check sequence (FCS) standard: CRC-16 (the default) or CRC-
32.
Encapsulation You must set this to match the settings on the frame relay CSU/DSU.
Subprotocol If ATM or LAPB is the selected encapsulation method, you must choose the sub-
protocols on the link.
Fractionalized Check if your link is configured for fractionalized operation. Fractionalized DS3
and E3 are not supported.
Bandwidth (HSSI) Set to match the bandwidth and channel settings of the fractionalized HSSI link
under analysis.