The following topology-related parameters are included in the connection mode command. Note that some options are relevant for cascaded topologies only.
Can be any one of the following, depending on the physical installation of the Cisco SCE platform:
– Inline—Single Cisco SCE platform inline
– Receive-only—Single Cisco SCE platform receive-only
– Inline-cascade—Two cascaded Cisco SCE platforms inline
– Receive-only-cascade—Two cascaded Cisco SCE platforms receive-only
The default is
—In cascaded topologies, defines which link is connected to this Cisco SCE platform.
The sce-id parameter, which identifies the Cisco SCE platform, replaces the physically-connected-link parameter, which identified the link. This change was required with the introduction of the Cisco SCE 8000 GBE platform, which supports multiple links. In the Cisco SCE 8000 10GBE, the number assigned to the sce-id parameter (0 or 1) will be defined as the of number of the physically-connected-link.
Note For backwards compatibility, the physically-connected-link parameter is currently still recognized.
Possible values are '0' and '1'.
Not applicable to single Cisco SCE platform topologies.
—This parameter defines which is the primary Cisco SCE platform. It is applicable only in a two Cisco SCE platform topology.
Possible values are 'primary' and 'secondary'
Not applicable to single Cisco SCE platform topologies
This parameter determines the behavior of the system when the Cisco SCE platform either has failed or is booting:
– cut the traffic (cutoff)
– bypass the traffic (bypass)
– automatically direct traffic through the external bypass module (external-bypass)
Note If the external-bypass option is configured, two optical bypass devices must be properly connected, one on each link. If an optical bypass device is not detected, the command is executed but a warning is issued. The system then enters warning mode until either the command is changed, or the presence of an optical bypass device is detected.
Note If the bypass option is configured and the connection mode is 'inline-cascade', a single optical bypass device must be connected on link #0 (SPA bays 0 and 1). As explained above, the command is executed, but the system enters warning mode.
– inline mode:
– inline-cascade mode:
Not applicable to receive-only topologies.
Note Do not change the connection mode unless the physical installation has been changed.
Step 1 From the SCE(config if)# prompt, type
connection-mode (inline | receive-only |
inline-cascade | receive-only-cascade)
primary | secondary)]
Configuring the Connection Mode Examples
This example defines defines a primary Cisco SCE 8000 in a cascaded inline topology. Link 0 is connected to this device, and the link mode on failure is bypass (default).
SCE(config if)# connection-mode inline-cascade sce-id 0 priority primary
This example defines a single-Cisco SCE platform, dual link, receive-only topology. The link mode
options are not applicable.
SCE(config if)# connection-mode receive-only