Cellular serviceability enhancements are debugging features that:

• enable trigger points and debug code via controller cellular CLIs for automatic generation and trapping of debug data without manual intervention,

• provide context-based debug logs including tracebacks and GPS locations, and

• create well-formatted debug messages with vendor-specific debug data at a broader range.

A GNMI Broker update is a software enhancement that:

• extends GNMIB to support the gRPC Network Operations Interface (gNOI) reset.proto service,

• provides functionality for restoring the device to its factory defaults via gRPC, and,

• maintains the current booted image through the reset process.

A gRPC Network Operations Interface (gNOI) update is a gRPC-based microservice that:

• defines interfaces for executing operational commands and procedures on network devices, such as OS Install, Activate, and Verification,

• enables operating system related tasks through os.proto, including OS activation, install, detailed overview, internal OS commands, and summary output of OS operations, and

• provides capabilities to display gnmib detailed state, check gnmib operational statistics, and output modifiers.

A raw socket feature enhancement is a network configuration capability that:

• allows the user to input the maximum number of retries available to the write socket,

• provides a range from 1 to 1000 retries with a default of 10 retries, and

• includes a new CLI command raw-socket tcp max-retries <1-1000> where <1-1000> is the maximum number of retries.

DLEP and credit based radio aware routing support are networking technologies that:

• address challenges when merging IP routing and radio frequency (RF) communications,

• enable optimal route selection based on feedback from radios with faster convergence, and

• provide flow-controlled communications using rate-based Quality of Service (QoS) policies.

A Small Form Factor (SFF) transceiver is an optical transceiver that

• is soldered onto the PCB,

• tends to be smaller in size than traditional SFPs, and,

• operates in the same way as an SFP.

RFC 4884 is a protocol enhancement that:

• redefines selected ICMP error messages to support multi-part operation,

• carries all of the information that ICMP messages carried previously, as well as additional information that applications may require, and

• introduces an 8-bit length attribute to ICMPv6 messages with extensions.

Netboot support is a recovery feature that:

• allows users to recover their router when there is no image in the bootflash or USB,

• uses TFTP boot functionality on the ESR6300 router, and

• operates through two Combo ports, Copper and Fiber ports (SFP) that support TFTP boot.

Security-Enhanced Linux is a set of patches to the Linux kernel and utilities that:

• incorporates a strong, flexible mandatory access control (MAC) architecture into the major subsystems of the kernel,

• provides an enhanced mechanism to enforce the separation of information based on confidentiality and integrity requirements, and

• enables the confinement of damage that can be caused by malicious or flawed applications.

SD-WAN on the ESR6300 is a network architecture implementation that:

• provides software-defined wide area network capabilities on the ESR6300 platform,

• requires release 17.3.1 or later for the ESR6300 and controller version 20.2 or later, and

• brings the ESR6300 into feature parity with the IR1101.

Serial port support is a set of protocol capabilities that:

• enables SCADA Gateway functionality (IEC10x and DNP3),

• provides Raw Socket (TCP and UDP) support,

• includes Line Relay and Reverse Telnet capabilities, and

• brings the ESR6300 into feature compatibility with the IR1101.

Boot from the USB is a device startup capability that:

• enables booting the device from configuration files located on the pluggable USB,

• supports customized startup configuration files from IOS or from ROMMON, and

• provides flexibility in device initialization and configuration management.