Cisco Systems CX-TRIP2, CX-TRIP4 User Manual

Customer Order Number: Documentation Part Number:

DOC-781065= 78-1065-03

Token Ring Interface Processor (TRIP) Installation and Conﬁguration

Product Numbers: CX-TRIP2 and CX-TRIP4

This document providesinstructionsforinstallingtheToken Ring interfaceprocessor(TRIP)inyour Cisco 7000 and Cisco 7500 series routers. The TRIP provides two or four IEEE 802.5 Token Ring network interfaces.

The sections in this document include the following:

• Product Description, page 2

• Installation Prerequisites, page 11

• Installation, page 16

• Checking the Installation, page 19

• Conﬁguring the Interfaces, page 20

• Checking the Conﬁguration, page 24

• Upgrading Microcode, page 25

• Cisco Information Online, page 28

Before beginning the installation, readthis entire document to ensurethatyou have all the necessary tools and equipment and that you have the correct modules for your system conﬁguration.

Cisco Systems, Inc.

Product Description

This section contains a detailed description of the Token Ring interface processor (TRIP). The TRIP, shown in Figure 1, provides twoor four Token Ring portsfor interconnection with IEEE 802.5 and IBM Token Ring media. TheTRIPuses the IBM 16/4-Mbps chipset withanimbedded performance enhanced interface driver and 16.7 MHzbit slice processor for highspeed processing. The speed on each port is set independently with a software command for either 4 or 16 Mbps. The TRIP ﬁrmware (microcode), which contains card-speciﬁc software instructions, resides in a ROM in socket U41. You may need to replace this componentinthefuture to enable new features or enhancements (if so, replacement instructions will be provided with the replacement component in an upgrade kit). The TRIP and all other interface processors support online insertion and removal (OIR), which allows you to remove and install a TRIP while the system is operating, without shutting down system power.

Figure 1 Token Ring Interface Processor (TRIP)

U41, microcode ROM

TRIP LEDs

H2006

IN RING

Enabled

Note The interface processor metal carrier contains the printed circuit board for the TRIP. To

4Mbps 16Mbps

prevent electrostatic damage (ESD), we recommend that you never remove or separate the printed circuit board from the metal carrier.

Interface processor slotsare accessed fromthe rear ofthe chassis. TheTRIP can beinstalled in any available interface processor slot. Each port on the TRIP requires a media access unit (MAU) to connect the DE-9TRIP connectors to the external Token Ring networks.

The enabled LED light on the TRIP lights to indicate the following status of the TRIP:

• Enabled for operation

• Correctly connected to the backplane

• Receiving power

• Contains a valid microcode version

If any ofthese conditions isnot met, orif the initialization fails for otherreasons, the EnabledLED does not light.

2 Token Ring Interface Processor (TRIP) Installation and Conﬁguration

When a Token Ring interfaceis conﬁgured by using software commands, three LEDs for each port indicate the following:

• 16 Mbps—Lights if the interface is operating at 16 Mbps.

• 4 Mbps—Lights if the interface is operating at 4 Mbps.

• In Ring—Whenlit,indicatesthattheinterfaceiscurrentlyactive and inserted intothering.When

not lit, the interface is not active and is not inserted into a ring.

Token Ring Connection Equipment

You will need an 802.5 MAU or a multistation accessunit(MSAU) to provide the interfacebetween the TRIP Token Ring interfaces and the external ring, and a Token Ring lobe cable between each TRIP port and theMAUor MSAU.Lobe cables connect each Token Ring station (TRIP port)to the MAU or MSAU, and patch cables can connect adjacent MSAUs to form one large ring.

TRIP ports operate at either 4 or 16 Mbps. The default speed for all TRIP ports is 4 Mbps, which you can change to 16 Mbps on anyport using the conﬁguration command ring-speed n, where n is the speed (4or 16) in Mbps. The speed ofeach Token Ring port must match thespeed of the ring to which it is connected. Before you enable the Token Ring interfaces, ensure that each is set for the correct speed, or it can bring down the ring.

Product Description

Caution Each TRIP port must be conﬁgured for the same ring speed as the ring to which it is

connected, either 4 or 16 Mbps.Iftheportissetforadifferentspeed,itwillcausetheringtobeacon, which effectively brings the ring down and makes it inoperable.

Token Ring Cables and Connectors

The Token Ring ports on the TRIP are DB-9 (PC type) receptaclesthatrequireType1or Type 3 lobe cables. Type 1 lobe cables use shielded twisted pair cable and terminate at the network end with a large MAU plug. (See Figure 2.) Type 3 lobe cables use either shielded or unshielded twisted pair (UTP) cable and terminate at the network end with an RJ-11 plug. (See Figure 2.) The TRIP end of both cable types is a DB-9 plug.

Figure 2 Token Ring Type 1 Lobe Cable Connectors, DB-9 and MAU Types

TRIP end

MSAU or MAU end

H2056

Token Ring Interface Processor (TRIP) Installation and Configuration 3

Product Description

Figure 3 Token Ring Type 3 Lobe Cable Connectors, DB-9 and RJ-11 Types

Token Ring Physical Connections

The term Token Ring refers to both IBM’sTokenRingNetwork,whichIBMdeveloped in the 1970s, and to IEEE 802.5 networks. The IEEE 802.5 speciﬁcation was modeled after, and still closely shadows, IBM’s network. The two types are compatible, although the speciﬁcations differ slightly.

Token Ring and IEEE 802.5 aretoken passing networks, whichmove a small frame,called a token, around the network. Possession of the token grants the right to transmit; a station with information to transmit must wait until it detects a free token passing by.

The IBM Token Ring speciﬁes a star topology, with all end stations connected through a device called a multistation access unit (MSAU). IEEE 802.5 does not specifyanytopology, although most implementations are based on a star conﬁguration with end stations attached to a device called a media access unit (MAU). Also, IBM Token Ring speciﬁes twisted-pair cabling, whereas IEEE

802.5 does not specify media type. Most Token Ring networks use shielded twisted-pair cabling; however, some networks that operate at 4 Mbps use unshielded twisted-pair cable. Table 1 shows a comparison of the two types.

TRIP end

MAU end

H2055

Table 1 IBM Token Ring and IEEE 802.5 Comparison

Network Type Data Rates Stations/ Segment Topology Media Signaling

IBM Token Ring network

IEEE 802.5 network 4, 16 Mbps 250 Not

4, 16 Mbps 260 shielded twisted-pair

72 unshielded twisted-pair

Star Twisted

pair Not

speciﬁed

Baseband Token passing Differential

Access Method Encoding

Manchester

4 Token Ring Interface Processor (TRIP) Installation and Conﬁguration

Product Description

In the typical Token Ring network shown in Figure 4, lobe cables connect each Token Ring station (TRIP port) to theMSAU (or MAU), and patch cablesconnect adjacent MSAUs(or MAUs)to form one large ring.

Figure 4 Token Ring Network Physical Connections

MAU or MSAU

Ring

in12345678

Stations

MAU or MSAU

Ring

in12345678

Stations

Ring

out

Ring

out

Ring

in12345678

Patch

cables

Ring

in12345678

Lobe

cables

MAU or MSAU

Ring

out

Stations

MAU or MSAU

Ring

out

Stations

H2058

All TRIP ports support both 4- and 16-Mbps operation and early token release. The default for all ports is for 4 Mbps operation and early token release disabled. Both states are enabled with conﬁguration commands in the conﬁguration mode. To enable 16 Mbps, specify the slot/port address and use the conﬁguration command ring-speed 16; to return to 4 Mbps operation, use the command ring-speed 4. To enable and disable early token release,specify the slot/port addressand use the conﬁguration command [no] early token release. For complete descriptions and examples of software commands, refer to the related software conﬁguration documentation.

Token Ring Interface Processor (TRIP) Installation and Configuration 5

Product Description

What is the Cisco 7000 Series?

Network interfaces reside on modular interface processors, which provide a direct connection between your external network and the high speed Cisco Extended Bus (CxBus) in the Cisco 7000 series routers, and the CyBus in the Cisco 7500 series routers.

Figure 5 and Figure 6 show the rear of the Cisco 7000 series routers: the seven-slot Cisco 7000and the ﬁve-slot Cisco 7010. Access to the processor slots andthe removablepowersupplies is from the rear, as shown. Two slots are reserved for the Route Processor (RP), which contains the system processor, and the Switch Processor (SP) (or Silicon Switch Processor [SSP]), which performs packetswitchingfunctions.Theremainingslots support any combination of network interfacetypes: channel attachment, serial, Ethernet, Fast Ethernet, multichannel interface, Token Ring, Fiber Distributed Data Interface (FDDI), or High-Speed Serial Interface (HSSI).

Figure 5 Cisco 7000, Interface Processor End

Captive installation screw

DC FAIL AC POWER

Upper power supply

Captive installation screw

Lower power supply

DC FAIL AC POWER

H2358

Slot 0

3 4 SP

slot SSP slot

6 Token Ring Interface Processor (TRIP) Installation and Conﬁguration

Figure 6 Cisco 7010, Interface Processor End

Product Description

RP slot SP or SSP slot

Interface processor slot 2 Interface processor slot 1

Interface processor slot 0

Power switch

Chassis ground screw

Power receptacle

DC OK LED

H2359

AC-input power supply

Token Ring Interface Processor (TRIP) Installation and Configuration 7

Product Description

What is the Cisco 7500 Series?

The Cisco 7500 series consists of three router models: the Cisco 7505, the Cisco 7507, and the Cisco

7513. All three models provide high reliability, availability, serviceability, and performance. The three systems support multiprotocol, multimedia routing, and bridging with a wide variety of protocols and any combination of Ethernet, Fast Ethernet, Token Ring, Fiber Distributed Data Interface (FDDI), serial, multichannel, channel attachment, and High-SpeedSerial Interface (HSSI) media. Network interfaces reside on modular interface processors, which provide a direct connectionbetween the high-speed, 1.067-gigabits-per-second(Gbps) Cisco Extended Bus (CyBus) and the external networks.

Note The Cisco 7507 and Cisco 7513 have dual CyBuses, for an aggregate bandwidth of

2.134 Gpbs.

Figure 7 showsthe rearof theﬁve-slot Cisco 7505router. In the Cisco7505, oneslot (4)is reserved for the Route Switch Processor (RSP1), which contains the system processor and performs packet switching functions. Slots 0 through 3 are for interface processors.

Figure 7 Cisco 7505, Interface Processor End

wer switch

Chassis grounding receptacles

EJECT

SLOT 1

NORMAL

ENABLE

SLOT 0

Power receptacle AC-input power supply

CPU HALT

ENABLE

RESET

AUX.

ROUTE SWITCH PROCESSOR

CONSOLE

RSP slot Interface processor slot 3

Interface processor slot 2 Interface processor slot 1

Interface processor slot 0

DC OK LED

H2761

8 Token Ring Interface Processor (TRIP) Installation and Conﬁguration

Product Description

Figure 8 shows the rear ofthe seven-slot Cisco 7507 router. In the Cisco 7507, upto two slots (2 and

3) are reserved for the Route Switch Processor (RSP2), which contains the system processor and performs packet switching functions. Slots 0 and 1, and 4 through 6 are for interface processors.

Figure 8 Cisco 7507, Interface Processor End

aptive stallation screw

pper

ower supply

DC FAIL AC POWER

NORMAL

ENABLE

hassis

rounding

ceptacles

aptive stallation screw

ower ower supply

DC FAIL AC POWER

EJECT

SLOT 1

Slot 0

SLOT 0

MASTER

SLAVE

SLAVE/MASTER

CPU HALT

RESET

AUX.

ROUTE SWITCH PROCESSOR 2

CONSOLE

34 5 6

ENABLE

H3888

RSP slots

Token Ring Interface Processor (TRIP) Installation and Configuration 9

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