76 8600 50124h 8600 smart routers test and measurement configuration guide

8600 Smart Routers Test and Measurement Configuration Guide 76.8600-50124H 15.05.2015 Document Information Revision History Document No Date Description of Changes 76.8600-50124H 15.05.2015 Added 8665 Smart Router functionality in: • 4.1 Virtual Circuit Connectivity Verification Overview • Packet Loop Test Reworked: 3.1.8 8600 NEs PLT Functionality and 3.2 Packet Loop Test Configuration Examples Changes applied in 4.1 Virtual Circuit Connectivity Verification Overview Updates applied in 2.2 LSP Ping and Traceroute Configuration Examples 76.8600-50124G 29.10.2014 Added 8615 Smart Router functionality in: • 4.1 Virtual Circuit Connectivity Verification Overview • Packet Loop Test Reworked Ethernet Loopback Added support of BGP IPv4 Label Unicast in 2.1 LSP Ping and Traceroute Overview Added BGP IPv4 Label Unicast ping and traceroute CLI syntax in 2.2 LSP Ping and Traceroute Configuration Examples Added a note clarifying a link behavior after issuing the 'no loopback to-equipment' command in 5.1.3 Equipment Loopback Operation Changes applied in 5.2 Ethernet Loopback Configuration Examples 76.8600-50124F 27.05.2014 Added 8602 Smart Router functionality in: • 4.1 Virtual Circuit Connectivity Verification Overview • Packet Loop Test • Ethernet Loopback • MAC Swap Loopback Renewed NE PLT support table in 3.1.8 8600 NEs PLT Functionality Added support of MAC swap loopback in 8609 Smart Router and 8611 Smart Router MAC Swap Loopback Changes applied in 5.1.3 Equipment Loopback Operation and Equipment Loopback Activation 8600 Smart Routers Test and Measurement Configuration Guide 76.8600-50124H © 2015 Coriant This revision of the manual documents the following network elements and the corresponding feature packs or higher 8602 Smart Router FP7.0 8605 Smart Router FP1.6 8607 Smart Router FP1.1 8609 Smart Router, 8611 Smart Router FP7.0 8615 Smart Router FP7.0 8620 Smart Router FP4.1 8630 Smart Router, 8660 Smart Router FP7.0 8665 Smart Router FP7.0 If a different feature pack of the 8600 Smart Routers is in use, please refer to the relevant product document program on the Coriant Portal by navigating to www.portal.tellabs.com > Product Documentation > Data Networking > 8600 Smart Routers > Technical Documentation The functionality described in this document for 8615 Smart Router is also applicable to 8615 Smart Router stacked, unless otherwise stated © 2015 Coriant All rights reserved This manual is protected by U.S and international copyright laws, conventions and treaties Your right to use this manual is subject to limitations and restrictions imposed by applicable licenses and copyright laws Unauthorized reproduction, modification, distribution, display or other use of this manual may result in criminal and civil penalties The specifications and information regarding the products in this manual are subject to change without notice All statements, information, and recommendations in this manual are believed to be accurate but are presented without warranty of any kind, express or implied Users must take full responsibility for their application of any products Adobe ® Reader ® are registered trademarks of Adobe Systems Incorporated in the United States and/or other countries 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 8600 Smart Routers Test and Measurement Configuration Guide 76.8600-50124H © 2015 Coriant Document Information Terms and Abbreviations Term Explanation AC Attachment Circuit AF Assured Forwarding AIS Alarm Indication Signal ATM Asynchronous Transfer Mode BE Best Effort BFD Bidirectional Forwarding Detection CC Control Channel CDC Control and DC Power Card CE Customer Equipment CLI Command Line Interface CPU Central Processing Unit CV Connectivity Verification DNS Domain Name System ELP Ethernet Link Protection FD Frame Delay FDV Frame Delay Variation FEC Forwarding Equivalence Class FRR Fast Re-Route FTN Forwarding equivalence class To Next hop label forwarding entry map ICMP Internet Control Message Protocol IETF Internet Engineering Task Force IFC Interface Module Concentrator is the line card baseboard IFC line card The IFC line card in 8630 Smart Router and 8660 Smart Router and consists of an IFC and up to two IFMs There are two types of IFC line cards: IFC1 and IFC2 76.8600-50124H © 2015 Coriant IFDV Inter-Frame Delay Variation IP Internet Protocol LAG Ethernet Link Aggregation LDP Label Distribution Protocol LOC Loss of Continuity LSP Label Switched Path LU1 Line Unit in 8665 Smart Router MPLS Multiprotocol Label Switching MSP Multiplexer Section Protection 8600 Smart Routers Test and Measurement Configuration Guide Document Information MS-PWE3 Multi-Segment PWE3 MTU Maximum Transfer/Transmission Unit NE Network Element NSP Native Service Processing NTP Network Time Protocol OAM Operation, Administration and Maintenance PE Provider Edge Network Element PLT Packet Loop Test PSN Packet Switched Network PWE3 Pseudowire Emulation Edge to Edge QoS Quality of Service RDI ATM Remote Defect Indication RFC Request For Comments RSVP Resource Reservation Protocol RSVP-TE RSVP with Traffic Engineering Extensions RX Receive SNE Source Network Element S-PE Switching PE TDM Time Division Multiplexing TLV Type Length Value TNE Target Network Element TOS Type of Service T-PE Terminating PE TTL Time-to-Live TX Transmit, Transmission UDP User Datagram Protocol VCCV Virtual Circuit Connectivity Verification VPLS Virtual Private LAN Service VPN Virtual Private Network VRF Virtual Routing and Forwarding VSI Virtual Switching Instance 8600 Smart Routers Test and Measurement Configuration Guide 76.8600-50124H © 2015 Coriant Table of Contents Table of Contents About This Manual 10 Objectives 10 Audience 10 8600 Smart Routers Technical Documentation 10 Interface Numbering Conventions 14 Document Conventions 14 Documentation Feedback 14 8600 Smart Routers Discontinued Products 15 Ping and Traceroute 16 1.1 1.2 LSP Ping and Traceroute 22 2.1 2.2 Ping and Traceroute Overview 16 1.1.1 Introduction 16 1.1.2 Ping 16 1.1.3 Traceroute 18 1.1.4 References 19 Ping and Traceroute Configuration Examples 20 1.2.1 Ping 20 1.2.2 Traceroute 21 LSP Ping and Traceroute Overview 22 2.1.1 Introduction 22 2.1.2 Operation 23 2.1.3 References 24 LSP Ping and Traceroute Configuration Examples 24 2.2.1 RSVP LSP Connectivity Test 29 2.2.2 PWE3 Connectivity Test 30 2.2.3 LDP Connectivity Test 31 2.2.4 Interrupting Connectivity Tests 32 Packet Loop Test 33 3.1 76.8600-50124H © 2015 Coriant Packet Loop Test Overview 33 8600 Smart Routers Test and Measurement Configuration Guide Table of Contents 3.2 Virtual Circuit Connectivity Verification 47 4.1 4.2 4.3 5.2 Ethernet Loopback Overview 56 5.1.1 Ethernet Loopback Types 56 5.1.2 Line Loopback Operation 56 5.1.3 Equipment Loopback Operation 57 Ethernet Loopback Configuration Examples 58 5.2.1 Activating Loopback Tests 58 Pseudowire Loopback 61 6.1 6.2 Virtual Circuit Connectivity Verification Overview 47 4.1.1 Control Channel Methods 47 4.1.2 Connectivity Verification 48 4.1.3 Multi-Segment PWE3 VCCV LSP Ping and Traceroute 50 VCCV References 51 VCCV Configuration Examples 51 4.3.1 VCCV BFD 52 4.3.2 VCCV LSP Ping 53 4.3.3 MS-PWE3 VCCV LSP Ping and Traceroute Configuration 54 Ethernet Loopback 56 5.1 3.1.1 Introduction 33 3.1.2 One-Way Delay Variation Test 34 3.1.3 Round-Trip Delay Test 34 3.1.4 One-Way Delay Test 34 3.1.5 Throughput Test 34 3.1.6 One-Way Packet Loss Test 35 3.1.7 IP Addresses Configuration for PLT 35 3.1.8 8600 NEs PLT Functionality 36 3.1.9 References 37 Packet Loop Test Configuration Examples 37 3.2.1 Delay Tests 37 3.2.2 Throughput Tests 40 3.2.3 Packet Loop Test Results 43 PWE3 Loopback Overview 61 6.1.1 Theory of Operation 61 PWE3 Loopback Configuration Examples 62 6.2.1 Activating Loopback Tests 62 Ethernet OAM 65 8600 Smart Routers Test and Measurement Configuration Guide 76.8600-50124H © 2015 Coriant Table of Contents MAC Swap Loopback 66 8.1 8.2 76.8600-50124H © 2015 Coriant Overview 66 MAC Swap Loopback Configuration 66 8600 Smart Routers Test and Measurement Configuration Guide About This Manual About This Manual This chapter discusses the objectives and intended audience of this manual, 8600 Smart Routers Test and Measurement Configuration Guide and consists of the following sections: • Objectives • Audience • Related Documentation • Documentation Feedback Objectives This manual provides an overview of the 8600 Smart Routers testing and measurement tools, connectivity verification and instructions on how to configure them with a command-line interface (CLI) using a router’s console or remote terminal (Telnet) Audience This manual is designed for administration personnel for configuring 8600 Smart Routers functions with CLI On the other hand, 8000 Intelligent Network Manager provides access to equal functionality for administration personnel with a graphical user interface It is assumed that the readers have a basic understanding of IP networks and using ping and traceroute programs for testing IP connectivity 8600 Smart Routers Technical Documentation The document numbering scheme consists of the document ID, indicated by numbers, and the document revision, indicated by a letter The references in the Related Documentation table below are generic and include only the document ID To make sure the references point to the latest available document versions, please refer to the relevant product document program on the Tellabs and Coriant Portal by navigating to www.portal.tellabs.com > Product Documentation & Software > Data Networking > 8600 Smart Routers > Technical Documentation 8600 Smart Routers Test and Measurement Configuration Guide 10 76.8600-50124H © 2015 Coriant Virtual Circuit Connectivity Verification All the relevant information for statically configured PWE3 circuits is available with the first command However, for LDP signaled PWE3 circuits the second command shows all information that is affected by LDP, while "show pwe3 circuit" command does not show that detailed level of information The following is an example showing the VCCV BFD general and detailed information displayed by the options of the show command Fig 14 VCCV BFD General and Detailed Status 4.3.2 VCCV LSP Ping VCCV LSP ping can be enabled as illustrated below In the following example also BFD was enabled to illustrate that LSP ping and BFD can coexist in the same PWE3 circuit Step Enable VCCV LSP ping to PWE3 pw-atm-vp-i1i3-100 router(config)# pwe3 circuit pw-atm-vp-i1i3-100 vccv cc-cw lsp-ping bfd-ipv4 bfd-flt-ipv4 bfd bfd-flt bfd-timers 20 Step Use this command to ping MPLS LSP/PWE3 Note that this command could also be applied at interface level e.g mpls ping pwe3 interface so1/0:1:1:1:1#atm#100 router# mpls ping pwe3 name pw-atm-vp-i1i3-100 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 53 Virtual Circuit Connectivity Verification Fig 15 VCCV LSP ping 4.3.3 MS-PWE3 VCCV LSP Ping and Traceroute Configuration MS-PWE3 VCCV LSP Ping Configuration Ping to MS-PWE3 itself is performed in the same way as already described in 4.3.2 VCCV LSP Ping Typically VCCV LSP Ping requires no extra configuration steps for MS-PWE3 Only T-PE nodes need to have the VCCV Ping enabled, for S-PE such operation is not necessary However, the attributes of the last PWE3 segment of the MS-PWE3 must be known These attributes are usually obtained via LDP protocol and there is no need to make any configuration In cases when S-PE does not support communication of segment attributes via LDP, then the last segment attributes need to be configured manually to both T-PEs The following is an illustration of how to configure a PWE3 last segment attributes for MS-PWE3 VCCV LSP ping Step Configure the last PWE3 segment attributes of a MS-PWE3 After configuring the attributes VCCV LSP ping can be enabled as described in 4.3.2 VCCV LSP Ping router(config)# pwe3 circuit hdlc-circuit ms-pw last-segment from 10.144.100.116 to 10.144.100.198 vc-id 150 MS-PWE3 VCCV LSP Traceroute VCCV LSP Traceroute requires that VCCV Ping is enabled at both T-PE, as described in 4.3.2 VCCV LSP Ping No extra configuration steps are required at S-PE The output of VCCV LSP traceroute is shown below Notice how the sending node (T-PE1) automatically learns the next target FEC stack from each MPLS echo reply 8600 Smart Routers Test and Measurement Configuration Guide 54 76.8600-50124H © 2015 Coriant Virtual Circuit Connectivity Verification Fig 16 MS-PWE3 VCCV LSP Traceroute 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 55 Ethernet Loopback Ethernet Loopback 5.1 5.1.1 Ethernet Loopback Overview Ethernet Loopback Types The 8600 system Ethernet interfaces support the following Ethernet loopback types: • Line loopback, see 5.1.2 Line Loopback Operation • Equipment loopback, see 5.1.3 Equipment Loopback Operation When activating an Ethernet loopback, the user must ensure that traffic being looped does not cause routing loops or broadcast storms, either in the local-end when an equipment loopback is activated or in the far-end when a line loopback is activated In both line and equipment loopback, the looping function is performed at L2 level in the 8600 NEs For more details about Ethernet supported functionality, please refer to 8600 Smart Routers Ethernet Configuration Guide In 8600 NEs, an Ethernet interface supports line and equipment loopback However, the following exceptions shall be noted: • In 8605 Smart Router: • In virtual module M0, the FE (10/100BASE-X) ports not support Ethernet line loopback • In 8620 Smart Router and IFC1 line card (8630 Smart Router and 8660 Smart Router): • The 2x1000BASE-X IFM does not support any type of Ethernet loopback • In 8x10/100BASE-TX IFM, Ethernet loopback is only possible with HW V2.0 or higher • In 8x1000BASE-X and 2+6x10/100/1000BASE-COMBO IFMs, Ethernet line loopback supports only a maximum rate up to 800 Mbps 5.1.2 Line Loopback Operation An Ethernet line loopback loops the received Ethernet packets from a given Ethernet interface back to the line without modifying the headers or payload In this case, both tunnelled and routed packets are supported A line loopback is controlled by CLI or 8000 Intelligent Network Manager An activated line loopback is automatically released after a loop timeout timer expires, or it can be also released manually by issuing the no loopback to-line CLI command The following figure provides an illustration of Ethernet line loopback 8600 Smart Routers Test and Measurement Configuration Guide 56 76.8600-50124H © 2015 Coriant Ethernet Loopback Fig 17 Ethernet Line Loopback 5.1.3 Equipment Loopback Operation An Ethernet equipment loopback can be activated for any Ethernet port, if the port is attached to a raw mode Ethernet PWE3, or if the port has VLANs and at least one of them is attached to a tagged mode Ethernet PWE3 When activated, all outgoing packets (routed and tunnelled) of the given port will be looped back to the equipment An equipment loopback is controlled by CLI or 8000 Intelligent Network Manager An activated equipment loopback is automatically released after the loop timeout timer expires, or it can be also released manually by issuing the no loopback to-equipment CLI command In 8x10/100/1000BASE-TX R2 IFM, in all gigabit Ethernet interfaces of 8609 Smart Router and 8611 Smart Router, and in LAG interfaces in 8609 Smart Router and 8611 Smart Router having gigabit Ethernet interfaces as members, when 'no loopback to-equipment' is configured, the link state goes down for a few seconds and then comes up The following figure provides an illustration of Ethernet equipment loopback Fig 18 Ethernet Equipment Loopback 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 57 Ethernet Loopback 5.2 Ethernet Loopback Configuration Examples This section provides CLI examples for activating Ethernet loopback testing 5.2.1 Activating Loopback Tests Line Loopback Activation The following example activates Ethernet line loopback To configure line loopback, at least the following tasks are required: • Set the physical interface and looping timeout • Activate the loopback and the interface Step Configures the physical interface fe10/0/0 signal looping timeout to 10 minutes (default looping timeout is 15 minutes) Note that if a loopback is activated before the timeout is changed, new timeout will not take effect until this loop expires and the loop is reactivated router(config)# interface fe 10/0/0 router(cfg-if[fe10/0/0])# loopback timeout 10 Step Activate Ethernet line loopback to the physical interface router(cfg-if[fe10/0/0])# loopback to-line Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:y router(cfg-if[fe10/0/0])# no shutdown router(cfg-if[fe10/0/0])# exit During the execution of line loopback in the step above, if the user opts to cancel the operation by using the "no" option, then the following message will be displayed: Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:n Execution of the command was cancelled because of the user request Equipment Loopback Activation The following examples activates an Ethernet equipment loopback Either a raw mode Ethernet PWE3 or at least one VLAN PWE3 must be created to the interface in order to be able to use Ethernet equipment loopback To configure an equipment loopback, at least the following tasks are required: • Configure an Ethernet PWE3 • Bind the Ethernet PWE3 to an AC interface • Set the looping timeout • Activate the loopback and the interface 8600 Smart Routers Test and Measurement Configuration Guide 58 76.8600-50124H © 2015 Coriant Ethernet Loopback Step Define a PWE3 circuit router(config)# pwe3 circuit pwloop2 Step Set the interface where the loopback shall be executed Bind the PWE3 pwloop2 to the interface router(config)# interface fe 10/5/0 router(cfg-if[fe10/5/0])# pwe3 circuit pwloop2 Step Set looping timeout to 10 minutes router(cfg-if[fe10/5/0])# loopback timeout 10 Step Activate equipment loopback and also the interface with no shutdown command router(cfg-if[fe10/5/0])# loopback to-equipment Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:y router(cfg-if[fe10/5/0])# no shutdown router(cfg-if[fe10/5/0])# exit During the execution of equipment loopback in the step above, if the user opts to cancel the operation by using the "no" option, then the following message will be displayed: Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:n Execution of the command was cancelled because of the user request Interface Status with Activated Loopback The following figure provides an example of an Ethernet interface status with activated Ethernet loopback Notice in the show command status below that the timeout value shown is not the elapsed value, instead is the set value shown 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 59 Ethernet Loopback Fig 19 Interface Status with Activated Ethernet Loopback Tests 8600 Smart Routers Test and Measurement Configuration Guide 60 76.8600-50124H © 2015 Coriant Pseudowire Loopback Pseudowire Loopback 6.1 6.1.1 PWE3 Loopback Overview Theory of Operation Any interface bound to PWE3 circuit can be looped back towards equipment or line using PWE3 loopback tests PWE3 loops in both equipment or line are typically controlled by local configuration using CLI or 8000 Intelligent Network Manager Activated loop (equipment or line) is automatically released after the loop timeout expires, or it can be also released manually by using the option “no” to the variant of the activation command PWE3 loopback tests are MPLS layer construct: • Equipment loopback is performed as MPLS swap by swapping incoming label to outgoing label and sending all received packets back towards to the other end of the PWE3 circuit • In equipment loop no Native Service Processing (NSP) is performed, as all received packets are never de-encapsulated from MPLS • Line loopback is equivalent to local bridge connection back to incoming interface • All NSP functions are performed to both directions Activation of PWE3 loopback causes temporary interruptions to: • VCCV traffic Any possible VCCV results must be ignored for the duration of the loop test • Packet synchronization processing for that particular PWE3 circuit The following figure illustrates the operation of the PWE3 line Fig 20 a) and equipment Fig 20 b) loops 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 61 Pseudowire Loopback Fig 20 PWE3 Loops Only one of the loops (either line or equipment) for any particular PWE3 circuit can be active at the same time 6.2 PWE3 Loopback Configuration Examples This section provides CLI examples for activating PWE3 loopback testing 6.2.1 Activating Loopback Tests Line Loopback The following example activates line loopback An interface bound to a PWE3 circuit pwloop1 is looped back to line towards the attachment circuit: Step Configure the interface where the loopback shall be executed router(config)# interface fe 0/1.100 Step Bind PWE3 circuit pwloop1 to the interface fe0/1.100 router(cfg-if[fe0/1.100])# pwe3 circuit pwloop1 8600 Smart Routers Test and Measurement Configuration Guide 62 76.8600-50124H © 2015 Coriant Pseudowire Loopback Step Activate the line loopback and also the interface with no shutdown command Note that PWE3 line loopback can also be activated with a looping timeout timer, which is not covered in this example router(cfg-if[fe0/1.100])# pwe3 loopback to-line router(cfg-if[fe0/1.100])# no shutdown router(cfg-if[fe0/1.100])# exit Equipment Loopback The following examples activates equipment loopback with a timer The equipment loopback mirrors PWE3 packets back and drops everything from the line interface However, PWE3 equipment loops are not supported for local cross-connections, i.e pseudowires with more than one attached interfaces PWE3 equipment loopback does not suppress link down fault Instead, PWE3 equipment loopback is intended for selective testing of particular PWE3 circuit while the attachment circuit is up If testing of PWE3 is required in a port that is in down state, use port level equipment loopback instead The usage of port level loopback has no downside effects compared to PWE3 loopback in the case where a port is in down state, as no other data services would be running Step Configure the interface where the loopback shall be executed router(config)# interface fe 5/0/5.100 Step Bind PWE3 circuit pwloop2 to the interface fe5/0/5 router(cfg-if[fe5/0/5.100])# pwe3 circuit pwloop2 Step Activate equipment loopback with looping timeout in seconds and also the interface with no shutdown command Note that loopback will be released when the loop timeout timer expires router(cfg-if[fe5/0/5.100])# pwe3 loopback to-equipment timeout 600 Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:y router(cfg-if[fe5/0/5.100])# no shutdown router(cfg-if[fe5/0/5.100])# exit During the execution of equipment loopback in the step above, if the user opts to cancel the operation by using the "no" option, then the following message will be displayed: Requested command may seriously harm data traffic or network element running configuration: you want to proceed? [y(es)/n(o)]:n Execution of the command was canceled because of the user request PWE3 Loopback Testing Status To verify the status of the activated loopback use the show CLI command An example showing loopback test status is provided below Notice in the show command status below, three seconds had elapsed since the loopback command was given 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 63 Pseudowire Loopback Fig 21 PWE3 Loopback Test Status 8600 Smart Routers Test and Measurement Configuration Guide 64 76.8600-50124H © 2015 Coriant Ethernet OAM Ethernet OAM Ethernet Operation, Administration and Maintenance (OAM) including CLI configuration and monitoring examples have been moved and they are now covered in the 8600 Smart Routers Ethernet Configuration Guide 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 65 MAC Swap Loopback MAC Swap Loopback 8.1 Overview MAC swap loopback is intended to selectively loopback Ethernet frames received from a specific source MAC swap loopback can be configured to operate on VLAN tagged and also on untagged Ethernet frames by swapping the places of source and destination MAC addresses so that the frame is returned back to the source Ethernet OAM frames are an exception as they are not subject to loopback MAC swap loopback can be used to support testing by a remote node that generates a stream of Ethernet frames and measures performance attributes such as delay and loss on the returned frames 8600 NEs Supporting MAC Swap Loopback NE Interface Types Untagged VLAN QinQ 8602 Smart Router Yes Yes Yes 8605 Smart Router Yes Yes — 8609 Smart Router Yes Yes Yes 8611 Smart Router Yes Yes — MAC swap loopback can be configured to operate on the “to-line” direction only Entered source MAC address cannot be broadcast MAC (FFFF.FFFF.FFFF) 8.2 MAC Swap Loopback Configuration The following is an example showing how to enable or disable MAC swap loopback for untagged Ethernet frames Step Enable MAC swap loopback for the untagged Ethernet frames on a ge0/0 interface router(config)# interface ge 0/0 router(cfg-if[ge0/0])# eth mac-swap-loopback source 1234.5678.abcd to-line Step Removing of the MAC swap loopback for the untagged Ethernet frames on a ge0/0 interface router(cfg-if[ge0/0])# no eth mac-swap-loopback source 1234.5678.abcd to-line router(cfg-if[ge0/0])# exit 8600 Smart Routers Test and Measurement Configuration Guide 66 76.8600-50124H © 2015 Coriant MAC Swap Loopback The following is an example on how to enable or disable MAC swap loopback for VLAN tagged Ethernet frames Step Enabling the MAC swap loopback for the Ethernet frames tagged with VLAN ID 22 on a ge0/0 interface router(config)# interface ge 0/0.22 router(cf-if[ge0/0.22])# eth mac-swap-loopback source 1234.5678.abcd to-line Step Removing of the MAC swap loopback for the Ethernet frames tagged with VLAN ID 22 on a ge0/0 interface router(cf-if[ge0/0.22])# no eth mac-swap-loopback source 1234.5678.abcd to-line router(cf-if[ge0/0.22])# exit 76.8600-50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 67 ... States and/ or other countries 76. 8600- 50124H © 2015 Coriant 8600 Smart Routers Test and Measurement Configuration Guide 8600 Smart Routers Test and Measurement Configuration Guide 76. 8600- 50124H. .. fi-documentation@tellabs.com 8600 Smart Routers Test and Measurement Configuration Guide 14 76. 8600- 50124H © 2015 Coriant 8600 Smart Routers Discontinued Products 8600 Smart Routers Discontinued Products 8600 Smart Routers. .. the 8600 NEs, please refer to 8600 Smart Routers ATM and TDM Configuration Guide and 8600 Smart Routers Ethernet Configuration Guide • IP and traffic management, please refer to 8600 Smart Routers