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This chapter describes the new features supported on the Cisco NCS 4200 Series with Cisco IOS XE Everest 16.5.1.
BFD on IP Unnumbered Interfaces
The Cisco NCS 4200 Series now support BFD to run on IP unnumbered interfaces, which take the IP address from the loopback address. You can use the same loopback address on multiple interfaces. For more information, see IP Routing: BFD Configuration Guide, Cisco IOS XE Everest 16.5.1 (NCS 4200 Series).
Support for Optic ONS-SI-2G-S1
The ONS-SI-2G-S1 is supported on the 1-Port OC-192 or 8-Port Low Rate CEM IM.
Support of Adaptive Clock Recovery (ACR) on 8-port T1/E1 Interface Module
Adaptive Clock Recovery (ACR) is most commonly used for Circuit Emulation (CEM). ACR is an averaging process that negates the effect of random packet delay variation and captures the average rate of transmission of the original bit stream. ACR recovers the original clock for a synchronous data stream from the actual payload of the data stream. In other words, a synchronous clock is derived from an asynchronous packet stream. ACR is a technique where the clock from the TDM domain is mapped through the packet domain. Effective Cisco IOS XE Everest 16.5.1, ACR is supported on 8-port T1/E1 interface module.
For more information, see 1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.5.1 (Cisco NCS 4200 Series).
Support for DS3 Smart SFP
DS3 Smart SFP supporting CEP ( VCoP Smart SFP) is a special type of optical transceiver which encapsulates T3 frames on STS-1 channels into packet format.
For more information, see Time Division Multiplexing Configuration Guide, Cisco IOS XE Everest 16.5.1 (Cisco NCS 4200 Series).
Unframed E1 for BCP over MLPPP
Bridge Control Protocol (BCP) is responsible for configuring, enabling and disabling the bridge protocol modules on both ends of the point-to-point link. The BCP feature enables forwarding of Ethernet frames over serial networks, and provides a high-speed extension of enterprise LAN backbone traffic through a metropolitan area. When BCP is supported on Multilink PPP (MLPPP), it enables transport of Ethernet Layer 2 frames through MLPPP.
For more information, see Cisco NCS 4200 Series Software Configuration Guide, Cisco IOS XE Everest 16.5.1.
There are no new hardware features in Cisco IOS XE Everest 16.5.1.