Cambium Networks PTP 820 Series, Руководство пользователя

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Chapter 9: TDM Services and Interfaces Configuring Advanced Pseudowire Parameters
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8 In the PSN Tunnel P-bits field, enter a p-bit value. This value will be assigned to frames passing through the
tunnel.
9 In the Maintenance Association ID field, you must select a Maintenance Association (MA) if you plan to use
the tunnel for path-protected services. This MA is assigned to the tunnel, defines Maintenance End Points
(MEPs), and performs continuity checks by sending Continuity Check Messages (CCMs) between the MEPs.
This is the mechanism by which PTP 820G or PTP 820F monitors the status of both paths in a protected TDM
service and determines when a switchover is necessary.
You must define the MA separately in order to assign it to a tunnel. For instructions, see Configuring OEM
for Pseudowire Services . For more information about defining TDM path protection generally, see
Configuring a Tunnel Group .
10 Click Apply , then Close .
Editing a Tunnel
To edit a tunnel:
1 Select the tunnel you want to edit.
2 Click Edit . The PseudoWire PSN Tunnels – Edit page opens. You can edit any of the tunnel parameters you
can configure when you add a tunnel except the Tunnel ID field.
3 Edit the tunnel parameters, as described above.
4 Click Apply , then Close .
Viewing a Tunnel’s Operational Status and Attributes
To view a tunnel’s operational status and attributes:
1 Select the tunnel you want to view.
2 Click Tunnel Status . The PseudoWire PSN Tunnels – Status page opens. Table 106 describes the tunnel
status parameters.