Procedure; Figure 389 Activate Tx Mute To Node C - Nokia 9500 MPR User Manual

Release 7.0.0 3DB 19286 ACAA Issue 01
Upgrade a Ring to R5.1.0 software

54.3 Procedure

1. Download the R5.1.0 software to all Ring Nodes.
2. Verify that no fault condition exists on the Ring.
3. Activate a Tx mute on Ring Node B toward Node C, see
Figure 389 Activate Tx mute to Node C
4. Activate the R5.1.0 software on Node B, see
580
cause the Ring to enter protection state.
R5.1.0 on Node B does not impact the Ring status, which prevents any
dependency on the time sequence of the upgrade of the East and West radio
interfaces. TDM and Ethernet traffic entering Node B is lost when the interface
toward Node A goes down due to radio interface upgrade, and is restored when
it is back up.
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Figure 389. This will
Figure 390. The activation of