Cisco Prime Nerk 43 User Guide
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Cisco Prime Network 4.3.2 User Guide
Chapter 18 Managing Carrier Ethernet Configurations
Working with Pseudowires
Step 4In the Display Pseudowire dialog box, preview or execute the command. The following information is
displayed:
The element name.
The command issued.
The results, including:
–VCCV: CC Type—The types of CC processing that are supported. The number indicates the
position of the bit that was set in the received octet. The available values are:
- CW [1]—Control Word
- RA...](http://img.usermanuals.tech/thumb/17/104726/w64_prime-nerk-43-user-guide-1524844501_d-554.png "Page 555
18-111
Cisco Prime Network 4.3.2 User Guide
Chapter 18 Managing Carrier Ethernet Configurations
Working with Pseudowires
Step 4In the Display Pseudowire dialog box, preview or execute the command. The following information is
displayed:
The element name.
The command issued.
The results, including:
–VCCV: CC Type—The types of CC processing that are supported. The number indicates the
position of the bit that was set in the received octet. The available values are:
- CW [1]—Control Word
- RA...")
18-107 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires For example, if you enter pseudo1, the pseudowires that have names containing the string “pseudo1” are displayed. To view all available pseudowires, choose Show All and click Go. The pseudowires that meet the specified search criteria are displayed in the Add Pseudowire dialog box in table format. The dialog box also displays the date and time at which the list was generated. To update the list, click Refresh. NoteIf an element is not included in your scope, it is displayed with the locked device icon. For information about sorting and filtering the table contents, see Viewing a Table of NEs and Their Properties (List View), page 7-7. Step 4In the Add Pseudowire dialog box, select the pseudowires that you want to add. You can select and add multiple pseudowires by pressing Ctrl while selecting individual pseudowires or by pressing Ctrl +Shift to select a group of pseudowires. Step 5Click OK. The pseudowire is displayed in the navigation pane and in the content area. In addition, any associated tickets are displayed in the ticket pane. See Figure 18-55. Figure 18-55 Pseudowire in Vision Map Step 6 Click the pseudowire in the navigation pane or double-click the pseudowire in the map pane to view the pseudowire components, such as pseudowire endpoints, pseudowire switching entities, and terminating interfaces. Figure 18-56 shows an example of an expanded pseudowire in the Vision client.
18-108 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-56 Pseudowire Components in Vision Maps The pseudowire information is saved with the map in the Prime Network database. Pseudowire discovery As explained earlier, a pseudowire is a point-to-point connection between pairs of provider edge (PE) routers. In a PW-HE configuration, the network PseudoWire service will include pseudowire edges. One of these edges will be connected to a dedicated ethernet flow point that will represent the pseudowire headend port. Viewing Pseudowire Properties To view pseudowire properties: Step 1In the Vision client, select the required map or domain. Step 2To view pseudowire endpoint properties configured on an element: a.In the navigation or map pane, right-click the required element and then choose Inventory. b.In the Inventory window, choose Logical Inventory > Pseudowires. The Tunnel Edges table is displayed, listing the pseudowire endpoints configured on the selected element. For a description of the information contained in the Pseudowires Tunnel Edges table, see Table 17-29.
18-109 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Step 3To view the properties of a pseudowire that you added to a map, do either of the following: If the pseudowire icon is of the largest size, click the Properties button. Right-click the element, and then choose Properties. The Pseudowire Properties window is displayed as shown in Figure 18-57. Figure 18-57 Pseudowire Properties Window Table 18-47 describes the information presented in the Pseudowire Properties window. Step 4To view the properties of a pseudowire endpoint associated with a pseudowire, right-click the required pseudowire endpoint, and then choose Properties. The Tunnel Properties window containing the pseudowire endpoint properties is displayed as shown in Figure 18-51 and described in Table 18-46. Step 5To view the properties of a pseudowire switching entity associated with the pseudowire, select the switching entity, and then choose Node > Inventory. The Local Switching table is displayed as shown in Figure 18-42. Table 18-43 describes the information displayed in the Local Switching table. Step 6To view the properties of the pseudowire endpoint that terminates on the subinterface, right-click the required interface, and then choose Properties. NoteThe selected port must be an Ethernet subinterface for the Contained Current CTPs table to be displayed. Table 18-48 describes the information displayed in the Contained Current CTPs table. Table 18-47 Pseudowire Properties Window Field Description Name Name of the pseudowire. Multisegment Pseudowire Whether or not the pseudowire is multisegment: True or False. System Name Internal or system-generated name of the pseudowire. Pseudowire Type Type of pseudowire, such as Ethernet, Ethernet Tagged, CESoPSN Basic, PPP, or SAToP.
18-110 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Step 7To view the properties of an Ethernet flow point associated with the pseudowire, right-click the EFP and then choose Properties. See Viewing EFP Properties, page 18-51 for the information that is displayed for EFPs. Displaying Pseudowire Information Use the following procedure to view Virtual Circuit Connectivity Verification (VCCV) and Control Channel (CC) information for a pseudowire endpoint. Your permissions determine whether you can run these commands (see Permissions for Managing Carrier Ethernet, page B-12). To find out if a device supports these commands, see the Cisco Prime Network 4.3.2 Supported Cisco VNEs. Step 1In the require map, double-click the required device configured for pseudowire. Step 2In the Inventory window, choose Logical Inventory > Pseudowire. Step 3In the Tunnel Edges table, right-click the required interface and choose Commands > Show > Display Pseudowire. Table 18-48 Contained Current CTPs Table Field Description Local Interface The name of the subinterface or port, hyperlinked to the interface in physical inventory. ID The tunnel identifier, hyperlinked to Pseudowires Tunnel Edges table in logical inventory. Peer The peer tunnel identifier, hyperlinked to the peer pseudowire tunnel in logical inventory. Tunnel ID The identifier that, along with the router IP addresses of the two tunnel edges, identifies the tunnel. Tunnel Status The operational state of the tunnel: Up or Down. Local Router IP The IP address of this tunnel edge, which is used as the router identifier. Peer Router IP The IP address of the peer tunnel edge, which is used as the router identifier. Pseudowire Type Type of pseudowire, such as Ethernet, Ethernet Tagged, CESoPSN Basic, PPP, or SAToP. Local MTU The size, in bytes, of the MTU on the local interface. Remote MTU The size, in bytes, of the MTU on the remote interface. Local VC Label The MPLS label that is used by this router to identify or access the tunnel. It is inserted in the MPLS label stack by the local router. Peer VC Label The MPLS label that is used by this router to identify or access the tunnel. It is inserted in the MPLS label stack by the peer router. Signaling Protocol The protocol used to build the tunnel, such as LDP or TDP. Preferred Path Tunnel The path to be used for pseudowire traffic.
18-111 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Step 4In the Display Pseudowire dialog box, preview or execute the command. The following information is displayed: The element name. The command issued. The results, including: –VCCV: CC Type—The types of CC processing that are supported. The number indicates the position of the bit that was set in the received octet. The available values are: - CW [1]—Control Word - RA [2]—Router Alert - TTL [3]—Time to Live - Unkn [x]—Unknown –Elapsed time—The elapsed time, in seconds. Step 5Click Close to close the Display Pseudowire dialog box. Viewing Pseudowire Redundancy Service Properties If a pseudowire is configured for redundancy service, a redundancy service badge is applied to the secondary (backup) pseudowire in the navigation and map panes in the Vision client. Additional redundancy service details are provided in the inventory window for the device on which the pseudowire is configured. To view redundancy service properties for pseudowires: Step 1To determine if a pseudowire is configured for redundancy service, expand the required pseudowire in the navigation or map pane. If the pseudowire is configured for redundancy service, the redundancy service badge appears in the navigation and map panes as shown in Figure 18-58.
18-112 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-58 Pseudowire Redundancy Service Badge in a Map Step 2 To view additional details, in the map, double-click the element with the redundancy service badge. The PTP Layer 2 MPLS Tunnel Properties window is displayed as shown in Figure 18-59 and shows that the selected pseudowire has a Secondary role in a redundancy service. Figure 18-59 Layer 2 MPLS Tunnel Properties for Pseudowire Redundancy Service Step 3 In the PTP Layer 2 MPLS Tunnel Properties window, click the VC ID hyperlink. The Tunnel Edges table in logical inventory is displayed, with the local interface selected in the table. (See Figure 18-60.)
18-113 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-60 Pseudowire Redundancy Service in Logical Inventory The entries indicate that the selected tunnel edge has a Secondary role in the first VC and a Primary role in the second VC. For more information about the Pseudowires Tunnel Edges table, see Table 17-29. Applying Pseudowire Overlays A pseudowire overlay allows you to isolate the parts of a network that are used by a specific pseudowire. To apply a pseudowire overlay: Step 1In the Vision client, choose the map in which you want to apply an overlay. Step 2From the toolbar, choose Choose Overlay Type > Pseudowire. Figure 18-61 shows an example of the Select Pseudowire Overlay for map dialog box.
18-114 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-61 Select Pseudowire Overlay Dialog Box Step 3 Select the required pseudowire for the overlay. Step 4Click OK. The elements being used by the selected pseudowire are highlighted in the map while the other elements are dimmed, as shown in Figure 18-62.
18-115 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-62 Pseudowire Overlay in Vision Window Step 5 To hide and view the overlay, click Hide Overlay/Show Overlay in the toolbar. The button toggles depending on whether the overlay is currently displayed or hidden. Step 6To remove the overlay, choose Choose Overlay Type > None. Monitoring the Pseudowire Headend A pseudowire (PW) is an emulation of a point-to-point connection over a packet-switching network (PSN). It operates over a uniform packet-based access/aggregation network. The composite L2 AC and the PW segment together form a point-to-point virtual CE-PE link that functions like a traditional CE-PE link technology. Figure 18-63 displays a typical pseudowire deployment over core network and Figure 18-64 displays a pseudowire deployment over access network.
18-116 Cisco Prime Network 4.3.2 User Guide Chapter 18 Managing Carrier Ethernet Configurations Working with Pseudowires Figure 18-63 Pseudowire Deployment Over Core Network Figure 18-64 Pseudowire Deployment Over Access Network A pseudowire headend (PW-HE) virtual interface originates as a PW on an access node and terminates on a Layer 3 service instance on the service provider router. For example, a PWHE can originate on the Layer 2 PW feeder node and terminate on a VRF instance on the Cisco CRS Router. You can configure all ingress and egress QoS function on the PW-HE interface, including policing, shaping, queuing, and hierarchical policies. In other words, the PW-HE is a technology that allows termination of access or aggregation pseudowires into an L2 or L3 domain. It allows us to replace a 2-node solution with a 1-node solution. Without a PW-HE, a L2 PE node must terminate a PW and then handoff the data to a S-PE via an Access Circuit. The following figure displays the PW-HE interface: 243510 PW CE1 PE2 PE2PE1 PE1 CE2 CE1 CE2 320494 CE L2 PE L2 PE S-PEPE P1 Access NetworkGlobal IP/MPLS Cor Network PWACAC CE-2