Overview. Port Adapter Overview CHAPTER

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1 CHAPTER This chapter describes the Cisco PA-POS-OC port adapter and contains the following sections: Port Adapter, page - SONET/SDH, page - Features, page - Interface Specifications, page -4 PA-POS-OC Optical Fiber Specifications, page - LEDs, page -6 Cables and Connectors, page -6 Network Management Support, page -7 Encapsulation Method Support, page -7 Using Statistics to Estimate Link Loss and Power Budget, page -8 Port Adapter Slot Locations on the Supported Platforms, page -8 Identifying Interface Addresses, page -6 Port Adapter The PA-POS-OC interface provides a direct connection between the supported router or switch platform and external networks. You must use the appropriate optical fiber cables to connect the PA-POS-OC with an external OC- network. (See the PA-POS-OC Optical Fiber Specifications section on page - and the Cables and Connectors section on page -6 for more information on optical fiber cables.) Three models of the PA-POS-OC are available: PA-POS-OCMM Multimode. (See Figure -.) PA-POS-OCSML Single-mode, long reach. (See Figure -.) PA-POS-OCSMI Single-mode, intermediate reach. (See Figure -.) -

2 SONET/SDH Chapter Figure - PA-POS OCMM Faceplate View, Horizontal Orientation CARRIER PACKETS CLASS LED PRODUCT PRODUKT MIT KLASSE LED PRODUIT AVEC VOYANT DEL DE CLASSE LED PRODUCTO LED DE LA CLASE -MM PACKET OVER SONET/SDH BN 767 Figure - PA-POS-OCSML Faceplate View, Horizontal Orientation CARRIER PACKETS CLASS PRODUCT LASERPRODUKT DER KLASSE PRODUIT LASER DE CLASSE PRODUCTO LASER CLASE -LR PACKET OVER SONET/SDH BN 766 Figure - PA-POS-OCSMI Faceplate View, Horizontal Orientation CARRIER PACKETS CLASS PRODUCT LASERPRODUKT DER KLASSE PRODUIT LASER DE CLASSE PRODUCTO LASER CLASE -IR PACKET OVER SONET/SDH BN 76 SONET/SDH The POS specification addresses the use of PPP encapsulation over SONET/Synchronous Digital Hierarchy (SDH) links. SONET is an American National Standards Institute (ANSI) standard (T.988) for optical digital transmission at hierarchical rates from.84 Mbps (STS-) to. Gbps (STS-48) and greater. SDH is the international standard for optical digital transmission at hierarchical rates from. Mbps (STM-) to. Gbps (STM-6) and greater. Because SONET/SDH is by definition a point-to-point circuit, PPP is well suited for use over these links. PPP was designed as a standard method of communicating over point-to-point links. SONET is an octet-synchronous multiplex scheme that defines a family of standard rates and formats. The basic rate for POS is that of STS-c/STM-, which is. Mbps. The available information bandwidth is Mbps, which is the STS-c/STM- Synchronous Payload Envelope (SPE), the payload portion of the SONET frame into which the octet-oriented user data is mapped. (Octet boundaries are aligned with the SPE octet boundaries.) For the SPE with the PA-POS-OC, section, line, and path overhead are removed. -

3 Chapter Features The International Telecommunications Union Telecommunication Sector (ITU-T) defines a series of SDH transmission rates beginning at. Mbps, as follows: SONET SDH Equivalent STS-c STM- STS-c STM-4c STS-48c STM-6c. ANSI-defined SONET specifications.. Currently supported by the PA-POS-OC. Despite the name, SONET is not limited to optical links. Electrical specifications have been defined for single-mode fiber, multimode fiber, and CATV 7-ohm coaxial cable. The PA-POS-OC currently allows transmission over single-mode and multimode optical fiber only. Transmission rates are integral multiples of.84 Mbps, which can be used to carry T/E bit-synchronous signals. The following transmission multiples are currently specified and commonly used: STS-c. Mbps (the PA-POS-OC conforms to STS-c) STS-c 6.8 Mbps STS-48c,488. Mbps The following references discuss concepts and specifications of POS and PPP: Simpson, W., Editor, The Point-to-Point Protocol (PPP), RFC 48, Daydreamer, December 99. Simpson, W., Editor, PPP in HDLC Framing, RFC 66, Daydreamer, July 994. Simpson, W, Editor, PPP Over SONET/SDH, RFC69, May 99. American National Standard for Telecommunications - Digital Hierarchy - Optical Interface Rates and Formats Specification, ANSI T.-99. American National Standard for Telecommunications - Synchronous Optical Network (SONET) Payload Mappings, ANSI T..-99 draft. ITU-T Recommendation G.77, Synchronous Digital Hierarchy Bit Rates, June 99. Features The PA-POS-OC has the following features: Standards-compliant SONET/SDH interface; SONET/STS-c and SDH/STM- framing and signaling overhead Full-duplex operation at Mbps (half-duplex operation is not supported) Intermediate-reach (PA-POS-OCSMI) and long-reach (PA-POS-OCSML) optical interface with single-mode optical fiber Short-reach optical interface (PA-POS-OCMM) with multimode optical fiber For information on the single-mode and multimode cables to use with the PA-POS-OC, see the PA-POS-OC Optical Fiber Specifications section on page -, and the Cables and Connectors section on page -6. -

4 Interface Specifications Chapter Self-synchronous X^4+ scrambling and de scrambling of packets Single-width port adapter for the VIP in all Cisco 7 series and Cisco 7 routers, and in Cisco 7 series, Cisco 7 series, Cisco ubr7 series routers, and the Cisco 74 PCI Port Adapter Carrier Card in the Cisco 74 router. Online insertion and removal (OIR) in Cisco 7 series, Cisco ubr7 series routers, Cisco 7 routers, and Cisco 74ASR routers, allowing you to remove, add, or replace a PA-POS-OC online To remove a PA-POS-OC from a VIP or VIP4 in a Cisco 7 series or Cisco 7 series router, or the Cisco 74 PCI Port Adapter Carrier Card in the Cisco 74 router, you must first remove the VIP or carrier card on which the PA-POS-OC is installed. The VIP and carrier card support OIR. To remove a PA-POS-OC from a Catalyst RSM/VIP in a Catalyst family switch, you must first remove the Catalyst RSM/VIP on which the PA-POS-OC is installed. The Catalyst RSM/VIP supports OIR. To remove a PA-POS-OC from a Catalyst 6 series switch with a Catalyst 6 family FlexWAN module, you must first remove the FlexWAN module on which the PA-POS-OC is installed. The FlexWAN module supports OIR. Support for 6-bit and -bit cyclic redundancy checking (CRC-6 and CRC-) Interface Specifications The physical layer interface for the PA-POS-OC is Optical Carrier- (OC-c, the specification for SONET STS-c and SDH STM- transmission rates), and the PA-POS-OC is designed to comply with Packet-over-SONET specifications. The PA-POS-OC provides a single.-mbps Packet OC- network interface for all supported platforms. Each PA-POS-OC has one duplex SC-type receptacle to allow connection to single-mode or multimode optical fiber. (For more information on the optical fiber cables you should use with this port adapter, see the PA-POS-OC Optical Fiber Specifications section on page - and the Cables and Connectors section on page -6.) Packet data is transported using Point-to-Point Protocol (PPP) and is mapped into the STS-c/STM- frame. The encapsulations used add approximately half the number of bytes of transport overhead as that involved with ATM using ATM Adaptation Layer (AAL) and line card control (LCC) Subnetwork Access Protocol (SNAP) encapsulations. The PA-POS-OC interface is compliant with RFC 69, PPP over SONET/SDH, and RFC 66, PPP in HDLC-like Framing. The PA-POS-OC supports RFC 69 PPP-over-SONET/SDH encapsulation, and provides support for SNMP agent v (RFC -7), and Management Information Base (MIB) II (RFC ). -4

5 Chapter PA-POS-OC Optical Fiber Specifications PA-POS-OC Optical Fiber Specifications The PA-POS-OC specification for optical fiber transmission defines two types of fiber: single-mode and multimode. Within the single-mode category, two types of transmission are defined: intermediate reach and long reach. Within the multimode category, only short reach is available. Modes can be thought of as bundles of light rays entering the fiber at a particular angle. Single-mode fiber allows only one mode of light to propagate through the fiber, and multimode fiber allows multiple modes of light to propagate through the fiber. Multiple modes of light propagating through the fiber travel different distances depending on the entry angles, which causes them to arrive at the destination at different times (a phenomenon called modal dispersion); therefore, single-mode fiber is capable of higher bandwidth and greater cable run distances than multimode fiber lists nominal OC- optical parameters for single-mode and multimode optical fiber transmission. If the distance between two connected stations is greater than the maximum distances listed, significant signal loss can result, making transmission unreliable. Table - lists the OC- optical parameters. Table - OC- Optical Parameters Transceiver Type Single-mode long reach Single-mode intermediate reach Multimode 6 short reach Transmit Power dbm min. to dbm max. at 8 nm 4 dbm min. to 8 dbm max. at 8 nm 4 dbm min. to 4 dbm max. at 8 nm 4 Maximum Power to Receiver Receiver Sensitivity Loss Budgets Nominal Distance Between Stations dbm 4 dbm to 8 db Up to mi (4 km) 8 dbm dbm to db Up to 9 mi ( km) 8 dbm dbm to 7 db Up to. mi ( km). This table gives nominal OC- optical parameters.. This value represents the maximum power to which any receiver can be exposed.. Complies with Bellcore GR--CORE Long Reach Specification (LR-). 4. Nominal wavelength is nm.. Complies with Bellcore GR--CORE Intermediate Reach Specification (IR-). 6. Complies with Short-Reach OC- Specification SR-OC-. To calculate link losses and dispersion losses for your application, refer to the following specifications and documents: EIA/TIA-IVa Dispersion Unshifted Single-Mode Fiber EIA-TIA- IVb Dispersion Shifted Single-Mode Fiber GR--CORE Generic Requirements for Optical Fiber and Fiber-Optic Cable ITU-T Recommendation G.97 Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy -

6 LEDs Chapter LEDs The PA-POS-OC faceplate has three LEDs that indicate port adapter and interface status. (See Figure -4.) Figure -4 LEDs on the PA-POS OC- Partial Faceplate View Shown CARRIER PACKETS CLASS LASER LASERPROD PRODUIT -IR PACKET OVER SONET/SDH BN 768 After system initialization, the enabled LED goes on to indicate that power is received and that the PA-POS-OC is enabled for operation. The following conditions must all be met before the PA-POS-OC is enabled: The PA-POS-OC is correctly connected and receiving power. The system bus recognizes the PA-POS-OC. A valid version of microcode is loaded and running. If any one of these conditions is not met, or if the initialization fails, the enabled LED does not go on. Table - lists LED colors and indications. Table - PA-POS-OC LEDs LED Label Color State Function Green On Indicates that the PA-POS-OC is enabled for operation. CARRIER Green On Indicates that valid SONET/SDH framing has been detected on the received carrier. PACKETS Green On Indicates that the PA-POS-OC has received a packet.. This LED does not merely indicate a received signal.. This LED will flicker rapidly during normal operation, indicating traffic. Cables and Connectors Use single-mode (for intermediate- or long-reach configurations) or multimode optical fiber cable to connect your router to a network or to connect two OC--equipped routers back to back. The PA-POS-OC provides the following optical fiber options: Multimode Mbps, OC- optical fiber (SONET STS-c or SDH STM-) Use a multimode optical fiber that has a core/cladding diameter of 6./ microns. Single-mode Mbps, OC- optical fiber (SONET STS-c or SDH STM-) Use a single-mode optical fiber that has a modal-field diameter of 8.7 ±. microns. (Nominal diameter is approximately / microns.) -6

7 Chapter Network Management Support For maximum cable lengths between stations, see on page -. Single-mode and multimode optical fiber cables for the PA-POS-OC are not available from Cisco Systems; they are available from commercial cable vendors. The PA-POS-OC has one duplex SC-type receptacle. For SONET/SDH single-mode and multimode optical fiber connections, use one duplex SC-type cable (see Figure -) or two simplex SC-type cables (see Figure -6), one for transmit () and one for receive (). Figure - Duplex SC-Type Cable and Connector Figure -6 Simplex SC-Type Cable and Connector H99 H4 For important laser and LED safety information, see the Laser and LED Safety section on page -. Network Management Support Following is the protocol and MIB support for the PA-POS-OC: SNMP agent v (RFC -7) MIB II (RFC ); POS MIB support is available with Cisco IOS Release. Encapsulation Method Support The following encapsulation methods are supported by the PA-POS-OC: RFC 69 Point-to-Point Protocol over SONET/SDH We recommend that you refer to the Internet Draft Enabling Transparency for the PPP over SONET/SDH Mapping, which is recognized by the Internet Engineering Task Force (IETF) and Internet Engineering Steering Group (IESG) as an approved addendum to RFC 69. High-Level Data Link Control (HDLC) Frame Relay -7

8 Using Statistics to Estimate Link Loss and Power Budget Chapter Using Statistics to Estimate Link Loss and Power Budget Statistical models more accurately determine the power budget than standard worst-case methods. Determining the link loss with statistical methods requires accurate knowledge of variations in the data link components. Statistical power budget analysis is beyond the scope of this document. For further information, refer to ITU-T standards and your equipment specifications. The following publications contain information on determining attenuation and power budget: TE./9-R ANSI, the Draft American National Standard for Telecommunications entitled Broadband ISDN Customer Installation Interfaces: Physical Layer Specification. Power Margin Analysis, AT&T Technical, TN89-4LWP, May 989. Port Adapter Slot Locations on the Supported Platforms The following sections describe the port adapter slot locations in the supported platforms. This section includes the following subsections: Catalyst RSM/VIP Slot Numbering, page -8 Cisco 7 Series Routers Slot Numbering, page - Cisco 7 Series and Cisco ubr7 Series Routers Slot Numbering, page - Cisco 7 Router Slot Numbering, page - Cisco 74 PCI Port Adapter Carrier Card Slot Numbering, page - Cisco 74ASR Router Slot Numbering, page -4 VIP Slot Numbering, page - Catalyst RSM/VIP Slot Numbering The Catalyst RSM/VIP can be installed in any slot except the top slots, which contain the supervisor engine modules. The Catalyst RSM/VIP in a Catalyst family switch does not use interface processor slot numbering; therefore, slots are not numbered in Figure -7. The PA-POS-OC can be installed into either port adapter slot or on a Catalyst RSM/VIP. Figure -7 shows a Catalyst RSM/VIP with two port adapters installed. The Catalyst switch has slots. Slot is reserved for the supervisor engine module. If a redundant supervisor engine module is used, it must go in slot ; otherwise, slot can be used for other modules. Slot is a dedicated slot, reserved for the ATM Switch Processor (ASP) module. Refer to the Catalyst Series Route Switch Module Installation and Configuration for any additional slot restrictions for the Catalyst RSM/VIP. -8

9 Chapter Port Adapter Slot Locations on the Supported Platforms Figure -7 Catalyst Family Switch with Port Adapters Installed on Catalyst RSM/VIP 794 UTP STAT ROUTE SWITCH MODULE CPU HALT PCMICA EJECT PCMCIA SLOT SLOT RESET CHANNEL CHANNEL AUX CONSOLE VIP Route Switch Module For additional information, see the Cisco 74ASR Router Slot Numbering section on page

10 WS-X648 WS-X648 WS-X648 WS-X64 4 PORT FX WS-X64 4 PORT FX WS-X64 4 PORT FX CONSOLE CONSOLE Switch Load % DTE/ DCE % Switch Load % DTE/ DCE % PORT PORT PORT PORT Port Adapter Slot Locations on the Supported Platforms Chapter Catalyst 6 Family FlexWAN Module Slot Numbering The Catalyst 6 family FlexWAN module can be installed in any slot except slot, which is reserved for the supervisor engine. The PA-POS-OC can be installed into either port adapter bay or bay on a FlexWAN module. Figure -8 shows a FlexWAN module with two blank port adapters installed. Slot is reserved for the supervisor engine. If a redundant supervisor engine is used, it would go in slot ; otherwise, slot can be used for other modules. Figure -8 Catalyst 6 Family Switch with Blank Port Adapters Installed on FlexWAN Module Supervisor engine WS-X6K-SUP SUPERVISOR I STAT SYSTEM ACTIVE PWR MGMT RESET PCMCIA EJECT Redundant supervisor engine WS-X6K-SUP SUPERVISOR I STAT SYSTEM ACTIVE PWR MGMT RESET PCMCIA EJECT STAT PORT GIGABIT ETHERNET 4 STAT PORT GIGABIT ETHERNET STAT FlexWAN module 6 8 PORT GIGABIT ETHERNET STAT 7 STAT Fan LED FAN LED 8 STAT 9 STAT o o INPUT FAN OUTPUT OK OK FAIL INPUT FAN OUTPUT OK OK FAIL 9844 Power supply Power supply -

11 Chapter Port Adapter Slot Locations on the Supported Platforms Cisco 7 Series Routers Slot Numbering The PA-POS-OC can be installed in port adapter slot in Cisco 7 series routers, and in port adapter slot 4 in Cisco 74 series routers. Figure -9 shows a Cisco 7 with a port adapter installed in slot. Figure - shows a Cisco 74 with a port adapter installed in slot 4. Figure -9 Port Adapter Slots in the Cisco 7 Series Router Cisco 7 Series Slot Slot Slot 4 SLOT SLOT ACT ACT PWR I EN CEL CAR ALM E LNK LNK SYS FE / FE / CONS AUX RDY 7 - AE 8498 Slot Slot Slot Figure - Port Adapter Slots in the Cisco 7 Series Router Cisco 74 Series Slot Slot Slot 4 AC O K DC O K OTF I EN CEL CAR ALM - MM SM-ISM RESET BOOT ERROR EN SLOT SLOT ACT ACT PWR LNK LNK SYS RDY FE / FE / CONS AUX - MM EN CEL CAR ALM 74 - MM AC O K DC O K OTF 8499 Slot Slot Slot -

12 ETHERNET-BFL 4 6 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 7 Series and Cisco ubr7 Series Routers Slot Numbering In the Cisco 76 (including the Cisco 76 and Cisco 76VXR as router shelves in a Cisco AS8 Universal Access Server), port adapter slot is in the lower left position, and port adapter slot 6 is in the upper right position. (The Cisco 74 and Cisco 74VXR are not shown; however, the PA-POS-OC can be installed in any available port adapter slot.) Figure - shows a Cisco 76 with port adapters installed. Figure - Port Adapter Slots in the Cisco 76 TOKEN RING ETHERNET BT MII RJ4 FAST ETHERNET 4 EN SERIAL-V. EN Cisco 7 Series PCMCIA EJECT SLOT SLOT FE MII MII EN RJ-4 EN RJ-4 O PWR OK RJ-4 FAST ETHERNET INPUT/OUTPUT CONTROLLER 89 Port adapter slot Port adapter slot Port adapter slot Port adapter slot 6 Port adapter slot 4 Port adapter slot Port adapter slot Figure - on page - shows the slot numbering of port adapters in a Cisco ubr746 series router. The port adapter slots are numbered slot and slot for the Cisco ubr746 and Cisco ubr746 VXR and slot for the Cisco ubr7. (Slot is always reserved for the Fast Ethernet port on the I/O controller if present.) -

13 SLOT GIGABIT ETHERNET / RJ4 EN GIGABIT ETHERNET / -4V, A, /6 Hz Chapter Port Adapter Slot Locations on the Supported Platforms Figure - Port Adapter Slots in the Cisco ubr746 and Cisco ubr746 VXR Port adapter slot (I/O controller) Port adapter slot (blank) Port adapter slot 4 ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS H Cable modem card slot Cable modem card slot 4 Cable modem card slot Cable modem card slot 6 Cisco 7 Router Slot Numbering The Cisco 7 router has one standard port adapter slot. See Figure -. Figure - Port Adapter Slot in the Cisco 7 Router Port adapter slot CELLS CARRIER ALARM ATM GBIC RJ4 EN GIGABIT ETHERNET / GBIC RJ4 EN GBIC AUX CONSOLE CISCO 74SERIES ALARM 4V=9A, 48-6V=A CISCO 74 COMPACT FLASH STAT Cisco 74 PCI Port Adapter Carrier Card Slot Numbering The Cisco 74 PCI Port Adapter Carrier Card accepts one single-width port adapter. Figure -4 shows a Cisco 74 PCI Port Adapter Carrier Card with a port adapter installed. -

14 7-CC-PA STAT -PORT OC ATM MM STAT ACTIVE/ LOOPBACK CARRIER/ ALARM ACTIVE/ LOOPBACK Port Adapter Slot Locations on the Supported Platforms Chapter Figure -4 Cisco 74 PCI Port Adapter Carrier Card Port Adapter Installed OIR STAT 7 PA CARRIER CELLS CARRIER ALARM ATM 846 The Cisco 74 PCI Port Adapter Carrier Card installs in Cisco 74 router module slots through. See Figure - for module slot numbering on a Cisco 74 router. Figure - Module Slots on the Cisco 74 Router Slot 4 7-OCATM-MM OIR Slot CARRIER/ ALARM 9K-C48 ACTIVE/ LOOPBACK CARRIER/ ALARM OIR -PORT OC48 POS w/ SMSR 9K-4C/POS-MM OIR STAT 4-PORT OC POS w/ MM Slot Slot 7 Slot Slot Cisco 74ASR Router Slot Numbering Figure -6 shows the front view of a Cisco 74ASR router with a port adapter installed securely installed with the locking lever in the locked and vertical position. The port adapter slot in the Cisco 74ASR router is numbered slot. Port adapter slot is always reserved for: ports on the system board. -4

15 Chapter Port Adapter Slot Locations on the Supported Platforms Figure -6 Cisco 74ASR Routers with a Port Adapter Installed CELLS CARRIER ALARM ENHANCED ATM VIP Slot Numbering Figure -7 shows a partial view of a VIP motherboard with installed port adapters. With the motherboard oriented as shown in Figure -7 with the port adapter faceplates facing you the left port adapter is in port adapter slot and the right port adapter is in port adapter slot. (The slot numbering is the same for the Catalyst RSM/VIP.) Figure -7 VIP Motherboard with Two Port Adapters Partial View, Horizontal Orientation Port adapter slot Port adapter slot Port adapter handles not shown 98 In the Cisco 7, Cisco 77, Cisco 7, and Cisco 776 chassis, the VIP motherboards are installed vertically. In the Cisco 7 and Cisco 7 chassis, the VIP motherboards are installed horizontally. Figure -8 shows a VIP or VIP4 installed in an interface processor slot of a Cisco 7 router. -

16 Identifying Interface Addresses Chapter Figure -8 VIP Installed in an Interface Processor Slot Cisco 7 Shown VIP in interface processor slot NORMAL EJECT SLOT SLOT CPU HALT RESET ROUTE SWITCH PROCESSOR CONSOLE Slot Slot Slot Slot Interface processor slots 969 Identifying Interface Addresses This section describes how to identify the interface address for the PA-POS-OC in supported platforms. Interface addresses specify the actual physical location of each interface on a router or switch. The interface on the PA-POS-OC installed in a router or switch maintains the same interface address regardless of whether other port adapters are installed or removed. However, when you move a port adapter to a different slot, the first number in the interface address changes to reflect the new port adapter slot number. The interface on a PA-POS-OC installed in a VIP or VIP4 maintains the same address regardless of whether other interface processors are installed or removed. However, when you move a VIP or VIP4 to a different interface processor slot, the interface processor slot number changes to reflect the new interface processor slot. This section includes the following subsections: Catalyst RSM/VIP Interface Addresses, page -8 Cisco 7 Series Routers Interface Addresses, page -8 Cisco 7 Series and Cisco ubr7 Series Routers Interface Addresses, page -8 Cisco 7 Router Interface Addresses, page -9 Cisco 74 PCI Port Adapter Carrier Card Interface Addresses, page -9 Cisco 74ASR Router Interface Addresses, page -9 VIP Interface Addresses, page -9 Interface ports are numbered from left to right starting with. Table - on page -7 explains how to identify interface addresses. -6

17 Chapter Identifying Interface Addresses Table - Identifying Interface Addresses Platform Interface Address Format Numbers Syntax Catalyst RSM/VIP in Port-adapter-slot-number/interface-port-number Port adapter slot always or / Catalyst family switches Interface port Catalyst 6 family FlexWAN module in Catalyst 6 family switches Module-slot-number/port-adapter-bay-number/ interface-port-number Module slot number through 6 or 9 (depending on the number of slots in the switch) Port adapter bay always or Interface port Cisco 7 series routers Port-adapter-slot-number/interface-port-number Port adapter slot always Interface port Cisco 74 series routers Port-adapter-slot-number/interface-port-number Port adapter slot always 4 Interface port Cisco 7 series routers Port-adapter-slot-number/interface-port-number Port adapter slot through 6 (depends on the number of slots in the router) Interface port Cisco ubr7 router Port-adapter-slot-number/interface-port-number Port adapter slot always Cisco ubr746 and Cisco ubr746 VXR routers Interface port Port-adapter-slot-number/interface-port-number Port adapter slot always or Interface port Cisco 7 routers Port-adapter-slot-number/interface-port-number Port adapter slot always Interface port Cisco 74 PCI Port Adapter Carrier Card in Cisco 74 routers Port-adapter-slot-number/interface-port-number Port adapter slot router module slot through Interface port Cisco 74ASR routers Port-adapter-slot-number/interface-port-number Port adapter slot always Interface port VIP in Cisco 7 series or Cisco 7 series routers Interface-processor-slot-number/port-adapterslot-number/interface-port-number Interface processor slot through (depends on the number of slots in the router) Port adapter slot always or Interface port. Slot is reserved for the supervisor engine. If a redundant supervisor engine is used, it must go in slot ; otherwise, slot can be used for other modules.. Port adapter slot is reserved for the Fast Ethernet port on the I/O controller (if present). // / 4/ / / / / / / // -7

18 Identifying Interface Addresses Chapter Catalyst RSM/VIP Interface Addresses This section describes how to identify the interface address used for the PA-POS-OC on the Catalyst RSM/VIP in Catalyst family switches. The interface address is composed of a two-part number in the format port-adapter-slot number/interface-port number. See Table - on page -7 for the interface address format. Catalyst 6 Family FlexWAN Module Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC on the Catalyst FlexWAN module in the Catalyst 6 family switches.the interface address is composed of a three-part number in the format module-number/port-adapter-bay-number/interface-port-number. See Table - on page -7 for the interface address format. If the FlexWAN module is inserted in module slot, then the interface address of the PA-POS-OC is // (module slot, port adapter bay, and interface ). If the port adapter was in port adapter bay on the FlexWAN module, this same interface address would be numbered //. If you remove the FlexWAN module with the PA-POS-OC from module slot and install it in module slot 6, the interface addresses become 6// through 6//7. The FlexWAN module physical port address uses a zero- (-) based port address, which differs from the conventional Catalyst 6 family one- (-) based port address. Cisco 7 Series Routers Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC in Cisco 7 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table - on page -7 for the interface address format. Cisco 7 Series and Cisco ubr7 Series Routers Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC in Cisco 7 series routers or Cisco ubr7 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table - on page -7 for the interface address format. In Cisco 7 series routers, port adapter slots are numbered from the lower left to the upper right, beginning with port adapter slot and continuing through port adapter slot for the Cisco 7, slot 4 for the Cisco 74 and Cisco 74VXR, and slot 6 for the Cisco 76 and Cisco 76VXR. (Port adapter slot is reserved for the optional Fast Ethernet port on the I/O controller if present.) The interface address of the interface on a PA-POS-OC in port adapter slot is / (port adapter slot and interface ). If the PA-POS-OC was in port adapter slot 4, this same interface would be numbered 4/ (port adapter slot 4 and interface ). -8

19 Chapter Identifying Interface Addresses In Cisco ubr7 series routers, port adapter slots are numbered slot and slot for the Cisco ubr746 and Cisco ubr746 VXR routers and slot for the Cisco ubr7 router. (Slot is always reserved for the Fast Ethernet port on the I/O controller if present.) The individual interfaces always begin with. The interface address of the interface on a PA-POS-OC in port adapter slot of a Cisco ubr746 or Cisco ubr746 VXR is / (port adapter slot and interface ). If the PA-POS-OC was in port adapter slot, this same interface would be numbered / (port adapter slot and interface ). Cisco 7 Router Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC in the Cisco 7 router. The interface address is made of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table - on page -7 for the interface address format. Cisco 74 PCI Port Adapter Carrier Card Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC in the Cisco 74 PCI Port Adapter Carrier Card in Cisco 74 routers. The interface address is made of a two-part number in the format port-adapter-slot-number/interface-port-number. The Cisco 74 PCI Port Adapter Carrier Card installs into Cisco 74 router module slots through (See Figure -.) The port-adapter-slot-number is the Cisco 74 router module slot number. For example, the interface address on a PA-POS-OC, in which the Cisco 74 PCI Port Adapter Carrier Card is installed in Cisco 74 router module slot, would be numbered /. Cisco 74ASR Router Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC in a Cisco 74ASR router. The interface address is composed of a two-part number in the format port-adapter-slot-number/logical-interface-number. See Table - on page -7 for the interface address format. VIP Interface Addresses This section describes how to identify the interface addresses used for the PA-POS-OC on a VIP or a VIP4 in Cisco 7 series and Cisco 7 series routers. Although the processor slots in the 7-slot Cisco 7 and Cisco 77 and -slot Cisco 7 and Cisco 776 are vertically oriented and those in the -slot Cisco 7 and Cisco 7 are horizontally oriented, all Cisco 7 series and Cisco 7 series routers use the same method for slot and port numbering. See Table - on page -7 for the interface address format. The interface address is composed of a three-part number in the format interface-processor-slot number/port-adapter-slot-number/interface-port- number. -9

20 Identifying Interface Addresses Chapter For a PA-POS-OC installed in interface processor slot of a Cisco 7 series or Cisco 7 series router, the interface address of the PA-POS-OC is // (interface processor slot, port adapter slot, and interface ). If the PA-POS-OC was in port adapter slot on the VIP or VIP4, this same interface address would be numbered //. If you remove the VIP or VIP4 with the PA-POS-OC from interface processor slot and install it in interface processor slot, the interface address becomes //. -