RAD Data comm RIC-E1 operation manual Appendix D IR-IP Interface Module

Appendix D IR-IP Interface Module		RIC-E1Installation and Operation Manual
	Erasing Configuration	D-25
	Resets Menu	D-25
D.11	VIEW MENU	D-26
	Configuration and Connection	D-26
	ARP Tables	D-27
	Multicast Groups Table Screen	D-28
	Displaying Statistics	D-28
D.12	DIAGNOSTIC TOOLS (PING TERMINAL)	D-29
	Using the Ping Function	D-30
D.13	ERASING USER’S CONFIGURATION	D-31
D.14	ERASING IR-IP SOFTWARE	D-31
	Erasing Application Software	D-32
	Downloading New Software	D-32

D.1 Introduction

IR-IP is a high-performance miniature IP router based on RAD's unique IP router chip, the ChipRouter.

IR-IP works by taking each Ethernet frame from the LAN and determining whether the IP packet is destined for the IP net on the Ethernet LAN. If not, IR-IP forwards the packet to the WAN (E1) link. IP packets received from the WAN link are automatically forwarded to the LAN if the IP net matches.

IR-IP includes hardware filters which handle all filtering operations at wire speed from both LAN-to-WAN and WAN-to-LAN, without dropping a single packet.

Filtering and forwarding are performed at the maximum rate of 35,000 and 30,000 frames per second (wire speed), respectively. The buffer can hold

256 frames of maximum size of 1534 bytes and a throughput latency of one frame.

IR-IP is available with 10BaseT (UTP) interface and is fully IEEE 802.3/Ethernet V2 compliant. The IR-IP interface can also operate in full duplex Ethernet applications.

RIC-E1 equipped with IR-IP can be used as a Frame Relay Access Device (FRAD) with an integral IP router. RFC 1490 is supported for a single DLCI on the E1 link. Detection of the DLCI and the maintenance protocol is performed automatically. This allows the IR-IP to be used as the termination unit of IP services over Frame Relay at the customer premises, opposite a Frame Relay switch in the backbone.

Alternatively, Point-to-Point Protocol (PPP) can be run on the WAN link with automatic negotiation on power-up, as well as support for PAP and CHAP authentication. With this feature, the IR-IP can operate opposite any PPP compliant access server or backbone router.

IR-IP supports HDLC, which is especially important for broadcast and multicast applications where bandwidth overhead is critical.

IR-IP supports IP multicast at wire speed, making it suitable for any multicast environment including high speed downstream environments, such as satellite and

D-2 Introduction

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