Alcatel-Lucent 7710 SR OS, Interface Configuration Manual

Page: 54 / 436

Port Features
Page 54 7710 SR OS Interface Configuration Guide
K1 byte
The switch priority of a request is assigned as indicated by bits 1 through 4 of the K1 byte.
The channel requesting switch action is assigned by bits 5 through 8. When channel number 0 is
selected, the condition bits show the received protection channel status. When channel number 1 is
selected, the condition bits show the received working channel status. Channel values of 0 and 1
are supported.
Table 13: K1 Byte, Bits 1-4: Type of Request
Bit 1234 Condition
1111 Lockout of protection
1110 Force switch
1101 SF - High priority
1100 SF - Low priority
1011 SD - High priority
1010 SD - Low priority
1001 (not used)
1000 Manual switch
0111 (not used)
0110 Wait-to-restore
0101 (not used)
0100 Exercise
0011 (not used)
0010 Reverse request
0001 Do not revert
0000 No request