Cisco Prime Nerk 43 User Guide
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24-17 Cisco Prime Network 4.3.2 User Guide Chapter 24 Managing Session Border Controllers (SBCs) Configuring SBC Components Add Codec List EntryIn the Codec List window, right-click the codec list instance> Commands> Add> Codec List EntryAdd, modify, or delete an entry in a codec list. Update Codec List Entry Delete Codec List EntryDouble-click the codec list, then right-click the codec> Commands> Update /Delete> Codec List Entry Media Addresses Add Media AddressRight-click the SBE node> Commands> Add> Media AddressAdd a media address or media Address DBE with parameters indicating that media address is managed by the Data Border Element (DBE) or Media Gateway Configuration (MGC). Add Media Address DbeRight-click the DBE node> Commands> Add> Media Address Dbe Delete Media AddressExpand the DBE node and click the Media Address node >Right-click the media address> Commands> Delete>Media AddressDelete an existing media address from the DBE node. QoS Profiles Add QoS ProfileRight-click the SBE node> Commands> Add> QoS ProfileConfigure QoS profile on a SBE node Update QoS Profile Delete QoS ProfileRight-click the profile in the QoS Profile window > Commands> Update> QoS Profile Command Navigation Description
24-18 Cisco Prime Network 4.3.2 User Guide Chapter 24 Managing Session Border Controllers (SBCs) Configuring SBC Components
CH A P T E R 25-1 Cisco Prime Network 4.3.2 User Guide OL-31018-01 25 Monitoring BNG Configurations Broadband Network Gateway (BNG) provides capabilities that help to improve the service providers ability to manage the subscribers services, and simplify overall network operations. BNG is a functionality that comprises subscriber management at a logical aggregation point in the network, which manages the subscriber’s user experience through identification, address assignment, authentication, authorization, accounting, and various other features such as security, Quality of Service (QoS), and subscriber forwarding. BNG represents the subscriber as a session, which is a logical point to enable services for a given subscriber. A subscriber is usually identified with the protocol that provides the IP address of the subscriber for address assignment. For example, a subscriber that uses the Point-to-Point Protocol (PPP) to connect to the network, receives its IP address through the PPP IP Control Protocol (IPCP) negotiation, and is represented as a PPP session. A subscriber that uses Ethernet to connect to the network receives its IP address through Dynamic Host Control Protocol (DHCP) and is represented as an IP session. The purpose of deploying BNG at the provider edge is to better manage and enrich the subscriber experience. BNG separates subscriber access functions from provider services and yields these benefits: Comprehensive session management and billing functions are supported by means of communication with an authentication, authorization, and accounting (AAA) server that is separate from the BNG. Subscribers can obtain services based on their subscriber ID or a combination of their subscriber ID and access line.
25-2 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations The network topology for BNG can be explained using the following models: BNG Retail Model—The subscriber connects to the network over a digital subscriber line (DSL) circuit into a DSL access multiplexor (DSLAM), which aggregates a number of subscribers. The DSLAMs are connected to an aggregation network, which grooms the subscriber traffic and switches it to BNG. A sample of the retail model is shown in Figure 25-1. Figure 25-1 BNG Retail Model BNG Wholesale Model—The subscriber’s traffic is handed off by the carrier (who still owns the infrastructure) to one of the several Internet Service Providers (ISP). There are different ways to make this handoff, Layer 2 Tunneling Protocol (L2TP) or Layer 3 virtual private networking (VPN) being two such methods. The BNG Retail model is used for deployment in Prime Network. Prime Network provides BNG support for Cisco Aggregation Service Router (ASR) 9000 series network elements. These topics provide an overview of the Broadband Network Gateway (BNG) technology and describe how to monitor and view BNG configurations using the Vision client. If you cannot perform an operation that is described in these topics, you may not have sufficient permissions; see Permissions for Managing BNG, page B-22. Working with BNG Configurations, page 25-2 Working with BNG Configurations This topic contains the following sections: Viewing Broadband Access (BBA) Groups, page 25-3 Viewing Subscriber Access Points, page 25-4 Diagnosing Subscriber Access Points, page 25-5 Viewing Dynamic Host Configuration Protocol (DHCP) Service Profile, page 25-6 Viewing Dynamic Config Templates, page 25-8 COREAGG Phone PC STB/TV HGDSLAMBNG283650
25-3 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Viewing Broadband Access (BBA) Groups BBA groups refer to the configuration settings applicable to a subscriber session that are accessing the network through an access interface. The same group can be applied to multiple access interfaces. For example, the maximum session limit for an access interface. To view the BBA group profile: Step 1Right-click on the device and choose the Inventory option. Step 2In the Inventory window, choose Logical Inventory>BNG>BBA Groups. A list of BBA groups is displayed in the content pane as shown in Figure 25-2. Figure 25-2 BBA Groups Content Pane Step 3 Right-click a group from the list and choose Properties. The BBA Group Properties dialog box is displayed. Table 25-1 describes the fields that are displayed in the BBA Group Properties dialog box.
25-4 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Viewing Subscriber Access Points Subscriber access points refer to the access interfaces that are named based on the parent interface. For example, bundle-ether 2.100.pppoe312. The subscribers on bundles (or bundle-VLANs) interfaces allow redundancy and are managed on the route processor (RP). However, the subscribers over physical interfaces are created and managed on the line card (LC) and are not redundant. To view the subscriber access points profile: Step 1Right-click on the device and choose the Inventory option. Step 2In the Inventory window, choose Logical Inventory>BNG>Subscriber Access Points. A list of access points is displayed in the content pane. Step 3Right-click the access point from the list and choose Properties. The Subscriber Access Point Properties dialog box is displayed. Table 25-2 describes the fields that are displayed in the Subscriber Access Point Properties dialog box. Table 25-1 BBA Group Properties Field Name Description Name The name of the BBA Group. MTU (Bytes) The default maximum payload, which can be any value between 500 and 2000. Service Name The name of the service configured under the specified BBA group. Maximum Access Interface LimitThe maximum limit of PPP over Ethernet (PPPoE) sessions on the access interface. Maximum Circuit ID LimitThe maximum limit of PPPoE sessions for the circuit ID. Maximum Session LimitThe maximum session limit per card. A warning is displayed if the session exceeds the limit specified here. Maximum MAC Address Access LimitThe maximum limit for MAC address access. A warning is displayed if the access exceeds the limit specified here. Maximum Payload LimitThe maximum payload limit. Service Selection Indicates the status of advertising of unrequested services names. By default, this service is enabled. Applied Interfaces Interface Name The name of the interface applied to the BBA Group. Entity Association The link to the applied interface. Click this hyperlink to view the relevant node under the Subscriber Access Point node.
25-5 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Diagnosing Subscriber Access Points The following commands can be launched from the inventory by right-clicking the BNG > Subscriber Access Points node and selecting the Commands > Diagnose option. Before executing any commands, you can preview them and view the results. If desired, you can also schedule the commands. To find out if a device supports these commands, see the Cisco Prime Network 4.3.2 Supported Cisco VNEs. Table 25-2 Subscriber Access Point Properties Field Name Description Access Point The name of the access point. Associated Entity The link to the associated entity. Click this hyperlink to view the associated Data Link Aggregation record under the Ethernet Link Aggregation node. Access Type The access type for the subscriber access point, which can be any one of the following: PPPOE_AND_IP PPPOE IP Ingress Service Policy The service policy for the access point, which when clicked will display the relevant policy under the Policy Container node. Ingress QoS Policy The Quality of Service policy for the inbound traffic, which when clicked will display the relevant policy under the Policy Container node. Egress QoS Policy The Quality of Service policy for the outbound traffic of the access point, which when clicked will display the relevant policy under the Policy Container node. BBA Group The BBA group to which the access point is associated. Click this hyperlink to view the relevant group under the BBA group node. DHCP Profile The DHCP profile to which the access point is associated. Click this hyperlink to view the relevant profile under the DHCP node. IP Address The destination address for User Datagram Protocol (UDP) broadcasts. VRF The Virtual Routing and Forwarding (VRF) in which the access points operates. Table 25-3 Diagnose Subscriber Access Points Diagnose Command Input parameters Show DHCP BindingBinding Type Show IP Subscriber Management Trace Trace Event Type Trace Count
25-6 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Viewing Dynamic Host Configuration Protocol (DHCP) Service Profile DHCP is used to automate host configuration by assigning IP addresses, delegating prefixes (in IPv6), and providing extensive configuration information to network computers. DHCP has the capability to allocate IP addresses only for a specified period of time, which is known as the lease period. If a client device wants to retain the IP addresses for a period longer than the lease period, then the client must renew the lease before it expires. A client can renew the lease depending on the configuration time sent from the server. A REQUEST message is unicast by the client using the servers IP address. On receiving the REQUEST message, the server responds with an acknowledgment, and the clients lease is extended by the lease time configured in the acknowledgment message. To view the DHCP service profile: Step 1Right-click on the required device and choose the Inventory option. Step 2In the Inventory window, choose Logical Inventory > DHCP Service > DHCP Profiles - IPv4. A list of DHCP profiles are displayed in the content pane as shown in Figure 25-3. Show PPoE Trace Trace Filter Type Trace Count Show Subscriber Dynamic Template Trace All Trace Filter Type Trace Event Type Trace Count Show Subscriber Manager Disconnect HistoryDisconnect History Filter Type Show Subscriber Manager Session History Session Type ID Value Show Subscriber Manager Trace Trace Filter Type Trace Event Type Trace Count Show Subscriber Session Details by Filter Session Filter Type Filter Value Filter State Table 25-3 Diagnose Subscriber Access Points (continued) Diagnose Command Input parameters
25-7 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Figure 25-3 DHCP Profiles Step 3 Right-click a service from the list and choose Properties. The DHCP Profile Properties dialog box is displayed. Table 25-4 describes the fields that are displayed in the DHCP Profile Properties dialog box.
25-8 Cisco Prime Network 4.3.2 User Guide OL-31018-01 Chapter 25 Monitoring BNG Configurations Working with BNG Configurations Viewing Dynamic Config Templates A dynamic template is used to group configuration items, which are later applied to a group of subscribers. This template is globally configured through the command line interface (CLI). However, the template does not get applied to a subscriber interface as soon as it is configured. It must be activated using a control policy. Similarly, you must deactivate the template using a control policy to remove its association with the subscriber interface. Ideally, you can activate more than one dynamic template on the same subscriber interface, for the same event or different events. The same dynamic-template can be activated on multiple subscriber interfaces through the same control policy. Table 25-4 DHCP Profile Properties Field Name Description Profile Name The name of the DHCP profile. Profile Type The network protocol that the profile belongs to. The profile type can be IPV4 or IPV6. Agent Mode The DHCP agent mode, which can be Relay, Snoop or Proxy. Lease Limit The lease limit for the profile. Lease Limit Type The lease limit type. Relay Information CheckIndicates whether the relay information check is enabled or disabled. Relay Information PolicyThe relay information policy. DHCP Agent Information Options Option The relay agent information options key parameter. Value The value of the relay agent information options. Applied Interfaces Interface Name The name of the interface applied to the DHCP Group. Entity Association The link to the applied interface. Click this hyperlink to view the relevant node under the Subscriber Access Point node. DHCP Servers Profile Class The profile class. Server Address The IP address of the profile, which is used to relay packets. VRF The VRF of the DHCP profile. Click this hyperlink to view the relevant node under the VRFs node. Gateway Address The IP address of the gateway. Match Option The match option of the DHCP profile. Match Option Value The value of the match option. Match Option Mask The match option mask.