Customer Order Number: |
DOC-781065= |
Documentation Part Number: |
78-1065-03 |
Token Ring Interface Processor (TRIP)
Installation and Configuration
Product Numbers: CX-TRIP2 and CX-TRIP4
This document provides instructions for installing the Token Ring interface processor (TRIP) in your 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:
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•
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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, read this entire document to ensure that you have all the necessary tools and equipment and that you have the correct modules for your system configuration.
Copyright © 1995 |
1 |
Cisco Systems, Inc.
All rights reserved.
Product Description
This section contains a detailed description of the Token Ring interface processor (TRIP). The TRIP, shown in Figure 1, provides two or four Token Ring ports for interconnection with IEEE 802.5 and IBM Token Ring media. The TRIP uses the IBM 16/4-Mbps chipset with an imbedded performance enhanced interface driver and 16.7 MHz bit slice processor for high speed 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 component in the future 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 H2006
Enabled
0 |
1 |
2 |
3 |
IN |
RING |
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4Mbps |
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16Mbps |
Note The interface processor metal carrier contains the printed circuit board for the TRIP. To prevent electrostatic damage (ESD), we recommend that you never remove or separate the printed circuit board from the metal carrier.
Interface processor slots are accessed from the rear of the chassis. The TRIP can be installed 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:
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Enabled for operation
Correctly connected to the backplane
Receiving power
Contains a valid microcode version
If any of these conditions is not met, or if the initialization fails for other reasons, the Enabled LED does not light.
2 Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
When a Token Ring interface is configured by using software commands, three LEDs for each port indicate the following:
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16 Mbps—Lights if the interface is operating at 16 Mbps.
4 Mbps—Lights if the interface is operating at 4 Mbps.
•In Ring—When lit, indicates that the interface is currently active and inserted into the ring. When not lit, the interface is not active and is not inserted into a ring.
You will need an 802.5 MAU or a multistation access unit (MSAU) to provide the interface between the TRIP Token Ring interfaces and the external ring, and a Token Ring lobe cable between each TRIP port and the MAU or 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 any port using the configuration command ring-speed n, where n is the speed (4 or 16) in Mbps. The speed of each Token Ring port must match the speed 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.
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. If the port is set for a different speed, it will cause the ring to beacon, which effectively brings the ring down and makes it inoperable.
The Token Ring ports on the TRIP are DB-9 (PC type) receptacles that require Type 1 or 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
TRIP end
MAU end
H2055
The term Token Ring refers to both IBM’s Token Ring Network, which IBM developed 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 are token passing networks, which move 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 specify any topology, 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.
Table 1 IBM Token Ring and IEEE 802.5 Comparison
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Access |
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Network Type |
Data Rates |
Stations/ Segment |
Topology |
Media |
Signaling |
Method |
Encoding |
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IBM Token Ring |
4, 16 Mbps |
260 shielded twisted-pair |
Star |
Twisted |
Baseband |
Token passing |
Differential |
network |
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72 unshielded twisted-pair |
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pair |
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Manchester |
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IEEE 802.5 network |
4, 16 Mbps |
250 |
Not |
Not |
Baseband |
Token passing |
Differential |
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specified |
specified |
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Manchester |
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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 the MSAU (or MAU), and patch cables connect adjacent MSAUs (or MAUs) to form one large ring.
Figure 4 Token Ring Network Physical Connections
MAU or MSAU |
MAU or MSAU |
Ring |
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Ring |
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in |
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Stations
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Ring |
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in |
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out |
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Stations
MAU or MSAU |
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Patch |
MAU or MSAU |
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cables |
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Ring |
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Ring |
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Ring |
Ring |
in 1 2 3 4 5 6 |
7 |
8 out |
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in 1 |
2 3 4 5 6 7 8 out |
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Lobe |
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cables |
H2058 |
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Stations |
Stations |
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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 address and 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
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 7000 and the five-slot Cisco 7010. Access to the processor slots and the removable power supplies 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 packet switching functions. The remaining slots support any combination of network interface types: 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
I
O
Captive installation screw
DC
FAIL
AC
POWER
H2358
Lower power supply
I
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Slot 0 1 2 3 4 SP |
RP |
or |
slot |
SSP |
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slot |
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6 Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
Figure 6 Cisco 7010, Interface Processor End
Power switch
Chassis ground screw
RP slot
SP or SSP slot
Interface processor slot 2
Interface processor slot 1
Interface processor slot 0
DC OK LED
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H2359 |
Power receptacle |
AC-input power supply |
Token Ring Interface Processor (TRIP) Installation and Configuration 7
Product Description
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-Speed Serial Interface (HSSI) media. Network interfaces reside on modular interface processors, which provide a direct connection between 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 shows the rear of the five-slot Cisco 7505 router. In the Cisco 7505, one slot (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
ower switch
Chassis grounding receptacles
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EJECT |
SLOT |
1 |
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CPU |
HALT |
RESET |
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NORMAL |
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AUX |
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SLOT |
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ENABLE |
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ENABLE |
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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
Power receptacle |
AC-input power supply |
8 Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
Figure 8 shows the rear of the seven-slot Cisco 7507 router. In the Cisco 7507, up to 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
Captive |
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nstallation screw |
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AC |
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POWER |
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ENABLE |
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NORMAL |
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pper |
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ower supply |
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hassis |
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EJECT |
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rounding |
I |
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SLOT0 |
1 |
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SLOT |
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eceptacles |
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SLAVEMASTER |
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Captive |
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SLAVE/MASTER |
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CPU |
HALT |
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ENABLE |
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nstallation screw |
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RESET |
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FAIL |
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POWER |
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H3888 |
ower |
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ower supply |
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AUX. |
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CONSOLE |
ROUTE |
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PROCESSORSWITCH |
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2 |
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Slot 0 |
1 |
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5 |
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RSP slots |
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Token Ring Interface Processor (TRIP) Installation and Configuration 9