3Com 11.1 manual Virtual Circuit Prioritization, Summary of Encryption Strengths, Encryption Key

New Features 13

<56 bit support packages/kits contain:

■A package identifier ending in ‘E’ (example, NE)

■A 3CR number containing/ending in ‘91’ (examples, 3CR856791, 3CR6452P91FLASH)

Table 3 contains a summary of the encryption strengths and the associated package ids.

Table 3 Summary of Encryption Strengths

		Encryption Key
Algorithm	Package ID	Length
RC4	xE	40
	xS	128
RC5	xE	56
	xS	128
DES	xE	56
	xS	56
3DES (2 key)	xS	112

RSVP

RSVP is a dynamic quality of service (QoS) setup protocol that enables IPv4-based real time applications to reserve resources at network nodes along the sender-to-receiver data path to meet its quality of service requirements. RSVP monitors and enforces bandwidth reservations for outbound QoS traffic on PPP and Frame Relay virtual ports. The Phase 1 RSVP message processing engine conforms to RFC 2205 and its application to Integrated Services as defined in RFC 2210. NETBuilder bridge/router-specific flow admission control, packet classification, and packet scheduling mechanisms are implemented to provide the controlled-load QoS control services as specified in RFC 2211. Both IPv4 unicast and multicast (over DVMRP/MOSPF domains) flows are supported.

New and Enhanced This section describes new and enhanced protocol features.

Protocol Features

Virtual Router Redundancy Protocol (VRRP) Phase 2

The Virtual Router Redundancy Protocol (VRRP) is designed to eliminate the single point of failure inherent in the static default routed environment. VRRP specifies an election protocol that dynamically assigns responsibility for a virtual router to one of the VRRP routers on a LAN. This is the second phase of VRRP. This phase adds FDDI to the currently supported media (Ethernet and Fast Ethernet). Phase II (similar to the initial implementation) will not support source route for VRRP advertisements (that is, the VRRP routers that belong to the same VRID cannot be separated by source route bridges.)

Virtual Circuit Prioritization

Frame Relay Virtual Circuit Prioritization extends the current queue handling capabilities of PPP ports to Frame Relay virtual circuits. The FR virtual circuit can be either a FR virtual port or a virtual circuit associated only with the parent port. All