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Cisco Unified SIP Proxy Version 9.0 Data Sheet

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Product Overview

Cisco® Unified SIP Proxy (USP) is a high-performance, highly scalable Session Initiation Protocol (SIP) proxy server that helps enterprises aggregate their SIP elements into a centralized architecture in order to simplify and improve the flexibility of their network.

The Cisco USP simplifies call routing within multielement SIP networks using call-routing rules to improve control and flexibility of the overall network. For example, an enterprise network may include Cisco Unified Communications Manager for call control, Cisco Unified Border Element for session border control, and Cisco Unified Customer Voice Portal (Cisco Unified CVP) for interactive-voice-response (IVR) as well as other Cisco and third-party SIP-based elements. Cisco USP interconnects these different SIP-based elements so that SIP network design and troubleshooting, when needed, are greatly simplified. Because Cisco USP acts as a “stateless” routing intermediary between these elements, it greatly reduces the call-routing combinations to help identify problems faster and speed troubleshooting. As such, each SIP-based element needs only to route its call activities to Cisco USP to help ensure proper call routing to any other SIP-based element in its network. By forwarding call-routing requests between call-control elements, the Cisco USP provides the means for routing sessions within enterprise and service provider networks.

Cisco Unified SIP Proxy Version 9.0 provides important new features not available in previous versions. Cisco USP Version 9.0 runs in a virtualized OS environment, such as VMware, on the Cisco Unified Computing System (Cisco UCS®) Series of servers (refer to Figure 1), and includes the Cisco UCS E-Series Server modules that are installable in Cisco 2900, 3900, 3900E, and the 4000 Series Integrated Services Routers. On the other hand, Cisco USP Versions 8.5.7 and earlier run on the Cisco Integrated Services Routers Generation 2 (ISR G2) Services-Ready Engine (SRE) blade, but are not supported on the Cisco UCS servers, they do not operate in virtualized OS environments, and they do not support all the features that Cisco USP Version 9.0 and later provide.

Figure 1.      Cisco UCS Servers (UCS B, C, and E) on Which Cisco USP Version 9.0 Operates

Applications

By simplifying SIP-based call routing, Cisco Unified SIP Proxy Version 9.0 enables a broad range of unified communications applications and services, as described in the following paragraphs.

Cisco Unified Border Element Scalability and Load Balancing

Cisco Unified Border Element (CUBE) is Cisco’s enterprise session border controller providing demarcation, security, interworking, session control, and demarcation in SIP trunking deployments. Cisco Unified SIP Proxy provides a central route point for management of multiple CUBEs, helping simplify and scale large SIP trunking deployments. You can establish logical separations and use a single Cisco Unified SIP Proxy for either or both ingress and egress traffic. You can apply load balancing and rule-based routing, and provide interfacing to the SIP trunk signal normalization where needed (Figure 2).

If a CUBE is unavailable, Cisco Unified SIP Proxy can intelligently reroute to an alternate CUBE. When that CUBE returns to service, Cisco Unified SIP Proxy resumes sending traffic back to that original CUBE. This design enables need-based growth of the service provider interconnect and also avoids risk associated with a single point of failure for the border element.

Figure 2.      Cisco Unified Border Element Scalability and Load Balancing in a SIP Trunking Deployment

SIP Trunk for Contact Center

Whether for inbound or outbound traffic, Cisco Unified SIP Proxy enables routing and management across contact center time-division multiplexing (TDM) and SIP trunks. Routing is provided across gateways connecting outside the network as well as across multiple Cisco Unified CVPs. If a Cisco Unified CVP or gateway is unavailable, Cisco Unified SIP Proxy can intelligently reroute to an alternate Cisco Unified CVP or gateway until that one is available again. You can apply load balancing and rule-based routing, and provide interfacing to the SIP trunk signal normalization where needed (Figure 3).

Figure 3.      SIP Trunk for Contact Center

Cisco Unified Communications Manager and Cisco Unified Communications Manager Express SIP Aggregation

Cisco USP can also simplify the network for an enterprise deploying a distributed call-control network using Cisco Unified Communications Manager at large sites and Cisco Unified Communications Manager Express at the branch offices. Management of SIP dial peers across midsize and large Cisco Unified Communications Manager and Cisco Unified Communications Manager Express networks presents a challenge. As opposed to a full mesh, dial peers can be pointed to Cisco Unified SIP Proxy, which provides a central route point. This process also simplifies the addition and removal of new call-processing agents. If a call-processing agent is unavailable, alternate routing and recovery can be provided. You can apply dial normalization and load balancing as needed (Figure 4).

Figure 4.      Cisco Unified Communications Manager and Cisco Unified Communications Manager Express SIP Aggregation

Cisco Unity PBX IP Media Gateway Integration

Cisco Unity® PBX IP Media Gateways (PIMGs) are used to connect time-division multiplexing (TDM)-based private branch exchanges (PBXs) into Cisco Unity voice messaging systems. Placement of Cisco Unified SIP Proxy in front of the Cisco Unity application enables PIMGs to share Cisco Unity ports, in turn enabling scalability of hybrid TDM PBX and IP messaging deployments (Figure 5).

Figure 5.      Cisco Unity PBX IP Media Gateway Integration

Service Provider SIP Interconnect Services

For interconnection among service providers, Cisco Unified SIP Proxy enables normalization of dial strings and SIP signaling variants. Cisco Unified SIP Proxy also provides routing and load balancing among SIP elements, including Cisco Unified Border Elements (Figure 6).

Figure 6.      Service Provider SIP Interconnect

Product Architecture

Cisco Unified SIP Proxy Call Processing

The Cisco Unified SIP Proxy is a call and dialog stateless SIP proxy, meaning that after Cisco USP determines the correct SIP-based routing, it withdraws from the signaling interaction and allows the SIP-based elements to perform midcall signaling directly between one another. In a network with multiple SIP-based elements, this stateless proxy function greatly simplifies the various SIP protocol interactions between these elements. Furthermore, Cisco USP does not perform any media-handling functions. Instead, session media flows bypass the Cisco USP and go directly to the SIP-based endpoints, which Cisco USP has interacted with in the session signaling process. The Cisco USP can also modify SIP headers (normalization). Routing and normalization are determined based on administrator-configured policies. Policies are selected based on triggers, administrator-configured conditions that are matched based on information in the SIP message.

As SIP messages come into the proxy, a determination is made as to whether any prenormalization policies need to be applied. Following prenormalization, new triggers are used to determine application of routing policies. A further series of triggers provides for further header modifications; for example, postnormalization policies after the routing decision has been made. In cases where policy is not asserted, the proxy provides for pass-through of the SIP message (Figure 7).

Figure 7.      Cisco Unified SIP Proxy Call-Processing Model

You can apply distinct rules to groups of requests to create independent “virtualized proxies” within a single Cisco Unified SIP Proxy. The rules are highly flexible and scalable to form routing or normalization policies.

Features

   Proxy for SIP unified communications signaling

   Signaling support: voice, video, fax, physical terminal line (TTY), modem, caller ID, caller name, updates, transfer, forward, hold, conference, status, message-waiting indicator (MWI), dual-tone multifrequency (DTMF) relay, and SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE) (presence)

   Address resolution (Domain Name System [DNS]: Type A and SRV and Type NAPTR)

     Domain name resolution based on RFC 3263, Locating SIP Servers

   TCP, User Datagram Protocol (UDP), and Transport Layer Security (TLS)

   Standard (RECORD ROUTE ON) mode: This mode keeps a record of the SIP sessions it connects. This record can be very valuable in the SIP-based network to determine if the call-routing policies (dial plan) defined within Cisco USP are working as intended

   Lite (RECORD ROUTE OFF) mode: This mode allows Cisco Unified SIP Proxy to run at a higher SIP request rate than the RECORD ROUTE ON call rate by disabling record-route functions. This mode is typically used after the SIP-based network call routing using Cisco USP has been thoroughly tested. For more details about RECORD ROUTE OFF mode, refer to the “Performance” section

   Deployment options: Cisco USP Versions 8.5.7 and earlier runs natively on an SRE server module installed in the Cisco 2900, 3900 and 3900E, or 4000 Series Integrated Services Routers. Cisco USP Versions 9.0 and later are virtualized and run on Cisco UCS Series Servers, including the Cisco UCS E-Series Server modules, which are also modules on Cisco 2900, 3900 and 3900E, or 4000 Series Integrated Services Routers

     The server modules impose minimal performance impact on the router, thereby allowing for concurrent router applications

Routing

   Routing based on policy

   Configurable multistep routing policies with route-table lookup

     Configurable match rules (for example, longest prefix, exact match, and fixed-length match)

     Configurable keys selected from the SIP request: Remote address, local address, request for Uniform Resource Identifier (URI), P-Asserted-Identity (caller ID), diversion, remote-party ID, To, and From; within these headers Cisco Unified SIP Proxy can select the user, host, port, domain, phone number, URI, carrier codes, and location routing numbers

     Configurable key modifiers (for example, case insensitivity, ignore plus, ignore display characters, etc.)

     Numerous routing decisions: Forward to a single route, forward to a route group, reject, and chain to another route policy

   Table-based routing for mapping of requests to destinations

     Support for a large number of routes in a table (10,000+)

     Routes populated through command-line interface (CLI) or upload of a route file

   Example routing scenarios:

     URI-based routing (number and name)

     Call block between specified sources and destinations, including policy-based transit routing (policy may require certain calls to either avoid or take certain routes)

     Class of restriction

     Translation of on-net to off-net dial plans (including public switched telephone network [PSTN] and IP-IP); simplifies network management, eliminating the need to configure translations in each call agent

   Percentage and weight-based routing

     Load balancing among downstream elements based on preset weight

     Priority values assignable for routing of selected calls; also enables configuration for least-cost routing

   Time policy routing

     Time(s) in a day, day(s) in a week, day(s) in a month, and month(s) in a year

   Ability to form downstream elements into a single logical group for load balancing and failover

   SIP element health management and monitoring

     Rerouting around unavailable SIP elements

     Ping for service availability and restoration of routing when unavailable SIP element is restored

   Rerouting based on redirect responses (Routing policy and postnormalization applies to the new destination specified in the contact header of the redirect response, and provides for sequential forking)

   Transport protocol conversion: TCP, UDP, TLS (For example, an incoming call received over UDP can be forwarded to a destination over TLS)

   Configurable record routing (on/off)

   Global unique caller ID pass-through

Normalization

   Normalization of SIP headers based on configurable policy

     Ability to add, remove, or update headers and header parameters

     Ability to update URI components such as user, domain, and host and ability to add, remove, and update URI parameters

     Digit manipulation

     Address manipulation

     TEL URI <=> SIP URI conversion

     Domain conversions

     Regular-expression processing

   Construction of multistep normalization policies

   Pre- and postnormalization

     Prenormalization prior to proxy application of routing rules (for example, applied to message coming into the proxy)

     Postnormalization after proxy application of routing rules (for example, applied to message going out from the proxy)

Rules-Based Selection of Routing and Normalization Policies

   Rich set of configurable rules

     SIP message type (for example, request and response)

     SIP method: INVITE, UPDATE, REFER, PRACK, BYE, SUBSCRIBE, NOTIFY, unsolicited NOTIFY, MESSAGE, PUBLISH, REGISTER, INFO, OPTIONS, and any custom or future SIP extensions

     Request-URI: User, host, phone number, etc.

     Local and remote IP, port, and protocol of the received SIP message

     Network name of the incoming and outgoing request (A network is a set of SIP listening points.)

     Transport protocol

     Regular expression match on any SIP header

     Time policy check

     SIP response code

     Mid-dialog message check

   Call Admission Control

     Call-counting based

Security and Privacy

   TLS (bidirectional)

   Through-header stripping (for topology hiding)

   User privacy (RFC 3325 P-Asserted ID: Removes P-Asserted ID when receiving a message from an element not configured as trusted, and removes P-Asserted ID and Privacy header when forwarding a message to an element not configured as trusted)

Network Design

   Multiple IP addresses (up to eight) to provide for flexible configuration and network topology design; you can group IP addresses to form networks and apply rules on these networks

   Multiple SIP listening points; each listen point can have a configurable port

   “Virtualized proxies” with multiple independent routing and normalization processing in a single server

   Redundancy through clustered network design for high availability

     Clusters addressed as Fully Qualified Domain Names (FQDNs); DNS resolution through Service (SRV) record

     Virtual IP addressing using Hot Standby Router Protocol (HSRP)

   Very high scalability with clustering of multiple Cisco Unified SIP Proxies

     Hierarchical and peer requests among clustered Cisco Unified SIP Proxies, either as server-based or virtualized platforms

Management

   Flexible management through GUI and CLI

   Monitoring of system status using Simple Network Management Protocol (SNMP) MIBs

   Load of preexisting configurations onto the Cisco Unified SIP Proxy module

   Copy of configurations off the Cisco Unified SIP Proxy module

   Graceful shutdown and restore, allowing for completion of transactions in process

   RADIUS accounting for SIP events

   SIP message logging for call monitoring

   Trace logging for troubleshooting

   FTP access to Cisco Unified SIP Proxy for easy download of trace logs, SIP message logs, configuration files, and route files, and upload of configuration files and route files

   SIP message metrics logging (peg counting); for example, count of incoming and outgoing messages over a period of time and logging to a file

   Detailed call statistics with call attempt, success, and failure rates per element

   Database store for debugs and logs

     Selectively log messages using regular expressions

     Search through stored log messages

     Log up to 1 million log messages

Supported Standards as a SIP Proxy

   IETF RFC 2246: TLS Protocol Version 1.0

   IETF RFC 2327 SDP: Session Description Protocol

   IETF RFC 2617 HTTP Authentication: Basic and Digest Access Authentication

   IETF RFC 2782: A DNS record route (RR) for specifying the location of services (DNS SRV)

   IETF RFC 2806: URLs for Telephone Calls

   IETF RFC 2976: The SIP INFO Method

   IETF RFC 3204: MIME media types for ISUP and QSIG Objects

   IETF RFC 3261 SIP: Session Initiation Protocol

   IETF RFC 3262: Reliability of Provisional Responses in the Session Initiation Protocol (SIP)

   IETF RFC 3263: Session Initiation Protocol (SIP): Locating SIP Servers

   IETF RFC 3264: An Offer/Answer Model with the Session Description Protocol (SDP)

   IETF RFC 3265: Session Initiation Protocol (SIP)-Specific Event Notification

   IETF RFC 3311: The Session Initiation Protocol (SIP) UPDATE Method

   IETF RFC 3325: Private Extensions to the SIP for Asserted Identity within Trusted Networks

   IETF RFC 3326: The Reason Header Field for the Session Initiation Protocol (SIP)

   IETF RFC 3515: The Session Initiation Protocol (SIP) Refer Method

   IETF RFC 3665: Session Initiation Protocol (SIP) Basic Call Flow Examples

   IETF RFC 3666: Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows

   IETF RFC 3725: Best Current Practices for Third-Party Call Control (3PCC) in the SIP

   IETF RFC 3842: A Message Summary and Message-Waiting Indication Event Package for the Session Initiation Protocol (SIP)

   IETF RFC 3856: A Presence Event Package for the Session Initiation Protocol (SIP)

   IETF RFC 3891: The Session Initiation Protocol (SIP) "Replaces" Header

   IETF RFC 3892: The Session Initiation Protocol (SIP) Referred-By Mechanism

   IETF RFC 4480 RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)

   SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE)

Ordering

The Cisco Unified SIP Proxy (USP) Version 9.0 introduces a major enhancement in the ordering and licensing processes compared to prior versions. This major enhancement is the introduction of Cisco Smart Licensing as the mechanism for ordering, enabling, and tracking the software licensing associated with Cisco USP.

Cisco Smart Licensing is a licensing innovation that is being applied to a wide range of Cisco software products, both those based on Cisco IOS® Software and those that aren’t, in order to achieve a greater level of licensing consistency and improve the overall user experience for Cisco customers. For more information about Cisco Smart Licensing, please visit: http://www.cisco.com/c/en/us/products/abt_sw.html.

With the introduction of Cisco Smart Licensing as part of Cisco USP Version 9.0, the ordering for Cisco USP is greatly simplified. You need only three Cisco USP Smart Licensing product IDs (PIDs), as shown in Table 1.

Table 1.       Cisco Unified SIP Proxy Version 9.0 Software Licensing Product IDs

Part Number

Description

Minimum Version of Cisco Unified SIP Proxy Software Required

L-CUSP-SL-100=

Cisco Unified SIP Proxy version 9.0 licensed for 100 SIP Requests per second (CPS) processing

9.0.0

L-CUSP-SL-30=

Cisco Unified SIP Proxy version 9.0 licensed for 30 SIP Requests per second (CPS) processing

9.0.0

L-CUSP-SL-10=

Cisco Unified SIP Proxy version 9.0 licensed for 10 SIP Requests per second (CPS) processing

9.0.0

Some of the beneficial aspects of these Cisco USP Smart Licensing PIDs include:

   They are transferable: These licenses can be moved between Cisco USP Version 9.0 virtual platforms as needed to support your SIP network deployment model. Furthermore, if these licenses are initially installed on a Cisco UCS E-Series virtualized server platform, they can be transferred to a Cisco UCS B-Series virtualized server platform at any time without any license upgrade or transfer fee.

   They are additive: You don’t need to purchase confusing licensing upgrade PIDs, as required in prior versions. If you initially order the 100 SIP Requests per second (RPS) Cisco USP Smart Licensing PID, but eventually need a higher level of CPS licensing, such as 200 CPS, then you can order an additional 100 CPS Smart Licensing PIDs, for a total of 200 CPS Cisco USP Licenses.

   They are incremental: You can increase CPS scale by increments of 10 CPS on any Cisco USP Version 9.0 virtual platform up to the full operating capacity of the platform.

In summary, the Cisco USP Smart Licensing PIDs provide dramatic improvements in the flexibility of Cisco USP licensing that have not been possible previously.

If you are purchasing Cisco USP for the first time, Cisco recommends that you acquire and deploy the new virtualized Cisco USP Version 9.0, because this version (and future Cisco USP versions) is where new Cisco USP features will be added. Previous Cisco USP versions running natively on the Cisco Services-Ready Engine (SRE) (described in the next section) will be supported with respect to fixing product defects (bug fixes) only, and no new feature enhancements will be made.

Ordering for Existing Customers with Versions Earlier than 9.0

Cisco will continue to support Cisco USP versions prior to 9.0 running natively on the Cisco SRE, but only for fixing product defects, not for any new feature enhancements. Therefore, you will need to transition to Cisco USP Version 9.0 to gain the newest features and functions. If you are an existing Cisco USP user and transition your installations by September 2016, Cisco will provide the replacement Cisco USP licenses (based on Smart Licensing, as described previously) at no charge. If you are unable to transition by September 2016, Cisco reserves the right to charge for the new Cisco USP Version 9.0 Smart Licensing as per the terms of existing Cisco USP licensing.

User self-server migration of existing Cisco USP 8.0 SWIFT licenses to Cisco USP 9.0 Smart Licenses will be supported in the Cisco Smart Licensing Portal after June 2015. Existing users who have an urgency to migrate the licenses prior to June 2015 can contact the Cisco USP Product Management team @ cusp-license-migration@cisco.com with relevant information.

Cisco Software Support Service

For all customers who either purchase Cisco USP Version 9.0 as a new user or transition to Cisco USP Version 9.0 from a previous version, Cisco will require the purchase of Cisco Software Support Service (SWSS) contracts to receive both technical support and new version enhancements. Information regarding SWSS contracts for Cisco USP v9.0 will be posted by March 31, 2015, at the SWSS partner and customer websites, as follows:

   SWSS Partner website

   SWSS Customer website

   SWSS Disti

   SWSS Support Guide

Ordering Cisco Unified SIP Proxy with Cisco Services-Ready Engine

Although Cisco Unified SIP Proxy will remain available on the SRE blade as a nonvirtualized software license, it will not include support for Cisco Unified SIP Proxy Version 9.0 or later. If you want ongoing software enhancements for Cisco USP, you must transition to Cisco USP Version 9.0 running on the Cisco UCS server platforms.

Cisco Unified SIP Proxy on the SRE is supported on specific Cisco ISR platforms, as explained in Tables 2 and 3.

Table 2.       Supported ISR Platforms for Cisco Unified SIP Proxy Version 8.5.0 and Earlier on SRE Blade for ISR G2 Routers

Part Number

Description

Minimum Version of Cisco Unified SIP Proxy Software Required

SM-SRE-700-K9

Cisco Service Ready Engine 700 Service Module

8.5.1

SM-SRE-900-K9

Cisco Service Ready Engine 900 Service Module

8.5.1

Table 3.       Cisco Unified SIP Proxy Version 8.5.0 and Earlier ISR Platform Support for SRE Module

Part Number

Cisco ISR Platform

Cisco 2911 and 2921

Cisco 2951 and 3900

Cisco 3900E

Cisco 4000

SM-SRE-700-K9

Yes

Yes

Yes

No

SM-SRE-900-K9

Yes

Yes

Yes

No

Minimum Cisco IOS Software version on ISR

15.0(1)M

15.1(1)T

Not applicable

Cisco Unified SIP Proxy on the SRE platform does not use Cisco Smart Licensing, but employs a counted feature license based on the maximum number of new incoming SIP requests per second. Requests that belong to an existing dialog, including SIP responses, are not counted. Refer to Table 4 for Cisco Unified SIP Proxy SIP requests per second supported on the SRE modules.

Table 4.       Cisco Unified SIP Proxy Licenses Supported on SRE Modules

SIP Requests per Second

SM-SRE-700-K9

SM-SRE-900-K9

2

Yes

Yes

10

Yes

Yes

30

Yes

Yes

100

Yes

Yes

200

No

Yes

Refer to Tables 5, 6, and 7 for the Cisco Unified SIP Proxy feature licenses available for the SRE modules.

Table 5.       Cisco Unified SIP Proxy Feature Licenses - Used for Preinstall on SRE Shipments from the Factory

Part Number

Description

FL-CUSP-2

Cisco USP Feature License for 2 SIP requests/second

FL-CUSP-10

Cisco USP Feature License for 10 SIP requests/second

FL-CUSP-30

Cisco USP Feature License for 30 SIP requests/second

FL-CUSP-100

Cisco USP Feature License for 100 SIP requests/second

FL-CUSP-200

Cisco USP Feature License for 200 SIP requests/second

Note:    The licensed number of requests/second refers to new incoming SIP requests. Requests that belong to an existing dialog, including SIP responses, are not counted.

Note:    Product with part number FL-CUSP-200 is supported on product with part number SM-SRE-900-K9 only.

A Cisco Unified SIP Proxy license can be added to an SRE (those with part number SM-SRE-700-K9 or SM-SRE-900-K9) after shipment from the factory. In this case, a spare feature license is used. You can receive these spare licenses through standard delivery or in an email message.

   Refer to Table 6 for Cisco Unified SIP Proxy spare feature licenses that you want to receive by standard delivery.

   Refer to Table 7 for Cisco Unified SIP Proxy feature licenses that you want to receive through an email message (e-delivery).

Table 6.       Cisco Unified SIP Proxy Spare Licenses for SRE Modules - Standard Delivery

Part Number

Description

FL-CUSP-2

Cisco USP Feature License for 2 SIP requests/second Spare

FL-CUSP-10

Cisco USP Feature License for 10 SIP requests/second Spare

FL-CUSP-30

Cisco USP Feature License for 30 SIP requests/second Spare

FL-CUSP-100

Cisco USP Feature License for 100 SIP requests/second Spare

FL-CUSP-200

Cisco USP Feature License for 200 SIP requests/second Spare

Note:    Product with part number FL-CUSP-200= is supported on product with part number SM-SRE-900-K9 only.

Table 7.       Cisco Unified SIP Proxy Spare E-delivery Licenses for SRE Modules

Part Number

Description

L-FL-CUSP-2

Cisco USP Feature License for 2 SIP requests/second Spare (e-delivery)

L-FL-CUSP-10

Cisco USP Feature License for 10 SIP requests/second (e-delivery)

L-FL-CUSP-30

Cisco USP Feature License for 30 SIP requests/second (e-delivery)

L-FL-CUSP-100

Cisco USP Feature License for 100 SIP requests/second (e-delivery)

L-FL-CUSP-200

Cisco USP Feature License for 200 SIP requests/second (e-delivery)

Note:    Part number L-FL-CUSP-200= is supported on part number SM-SRE-900-K9 only.

Cisco Unified SIP Proxy supports upgrade from one license level to a higher one according to the capacity of the module. Refer to Table 8 for Cisco Unified SIP Proxy upgrade licenses. In the case of a multilevel upgrade, for example, to upgrade from 2 SIP requests per second to 100 SIP requests per second, you should order licenses with part numbers FL-CUSP-2U10= and FL-CUSP-10U100=.

Table 8.       Cisco Unified SIP Proxy Upgrade Licenses

Part Number

Description

FL-CUSP-2U10=

Cisco USP Upgrade License for 2 to 10 SIP requests/second

FL-CUSP-10U30=

Cisco USP Upgrade License for 10 to 30 SIP requests/second

FL-CUSP-10U100=

Cisco USP Upgrade License for 10 to 100 SIP requests/second

FL-CUSP-30U100=

Cisco USP Upgrade License for 30 to 100 SIP requests/second

FL-CUSP-100U200=

Cisco USP Upgrade License for 100 to 200 SIP requests/second

Note:    Product with part number FL-CUSP-100U200= is supported on product with part number SM-SRE-900-K9 only.

You can receive Cisco Unified SIP Proxy upgrade licenses in an email message. In order to receive upgrade licenses by e-delivery, you must choose an e-delivery type license. Refer to Table 9 for Cisco Unified SIP Proxy e‑delivery upgrade licenses.

Table 9.       Cisco Unified SIP Proxy Upgrade E-Delivery Licenses

Part Number

Description

L-FL-CUSP-2U10=

Cisco USP Upgrade License for 2 to 10 SIP requests/second (e-delivery)

L-FL-CUSP-10U30=

Cisco USP Upgrade License for 10 to 30 SIP requests/second (e-delivery)

L-FL-CUSP-10U100=

Cisco USP Upgrade License for 10 to 100 SIP requests/second (e-delivery)

L-FL-CUSP-30U100=

Cisco USP Upgrade License for 30 to 100 SIP requests/second (e-delivery)

L-FL-Cisco USP-100U200=

Cisco USP Upgrade License for 100 to 200 SIP requests/second (e-delivery)

Note:    Product with part number L-FL-CUSP-200= is supported on product with part number SM-SRE-900-K9 only.

Performance

Performance is limited by both the number of incoming SIP requests specified in the feature license and module processing capability. With Cisco Unified SIP Proxy Versions 8.5 and later, you can operate Cisco Unified SIP Proxy in standard (Record Route On) and lite (Record Route Off) modes.

Standard mode (also referred to as RECORD ROUTE ON) supports the SIP requests-per-second performance described by the feature license installed. For example, the Cisco USP Smart license (part number L-CUSP-SL-100=) authorizes 100 SIP requests per second. This standard mode is used in most deployments because it provides a complete history of SIP requests.

Lite mode (also referred to as RECORD ROUTE OFF) enables Cisco Unified SIP Proxy to run at a higher SIP requests-per-second rate when the record route feature is disabled. In this mode, Cisco USP will authorize a higher number of SIP requests per second. The licensing multiplier between Cisco USP licensing for Standard mode as compared to Lite mode is 2.5x. So, the same Cisco Smart License (part number L-CUSP-SL-100=) running in Lite mode would authorize up to 250 SIP requests per second.

The licensing multiplier, as explained previously, is the same for Cisco USP Smart Licensing and for Cisco USP PAK Licensing. It is important that the Cisco USP Licensing be properly matched to the platform performance in terms of SIP requests per second. The following tables show the difference in performance between Cisco USP 9.0 running on the Cisco UCS E-Series platform as compared to earlier versions of Cisco USP running on the SRE platform.

Table 10 describes the Cisco Unified SIP Proxy maximum performance on the SRE and Cisco UCS E-Series modules in Standard mode (RECORD ROUTE ON).

Table 10.     Cisco Unified SIP Proxy SIP Requests per Second (RPS) Performance Comparison Estimates Between SRE and Cisco UCS E-Series with RECORD ROUTE ON

Parameter

Cisco USP 8.5.7 and Earlier on SRE

Cisco USP 9.0 and Later on Cisco UCS E-Series

 

UDP

TCP

UDP

TCP

Call routing only

200

140

400

280

Call routing with normalization

140

125

280

250

CVP

250

225

500

450

Table 11 describes the Cisco Unified SIP Proxy maximum performance on the SRE and Cisco UCS E-Series modules in Lite mode (RECORD ROUTE OFF).

Table 11.     Cisco Unified SIP Proxy SIP Requests per Second (RPS) Performance Comparison Estimates Between SRE and Cisco UCS E-Series with Record Route Off

Parameter

Cisco USP 8.5.7 and Earlier on SRE

Cisco USP 9.0 and Later on Cisco UCS E-Series

 

UDP

TCP

UDP

TCP

Call routing only

500

350

1000

700

Call routing with normalization

350

310

700

625

CVP

625

560

1250

1125

Note:    Performance for Cisco USP with either record route on or record route off will vary depending on call flows, which affect the SIP requests per second. Furthermore, maximum module performance will be lower when DNS lookup, SIP logging, or RADIUS logging services are enabled.

Table 12 shows Cisco Unified SIP Proxy Version 9.0 resource usage on a virtualized platform.

Table 12.     Cisco Unified SIP Proxy Version 9.0 Resource Usage on Virtualized Platform

Parameter

100 SIP Requests per Second

200 SIP Requests per Second

300 SIP Requests per Second

400 SIP Requests per Second

vCPU

2

4

4

4

RAM

4 GB

4 GB

4 GB

4 GB

Disk

80GB

80GB

80GB

80GB

Hardware Specifications

Cisco UCS hardware specifications for Cisco USP Version 9.0 and later can be found at the following URLs:

   http://www.cisco.com/c/en/us/products/servers-unified-computing/product-listing.html

   https://apps.cisco.com/ccw/cpc/guest/home.do#!/content/ucsSeriesDetails/series_cseries

   http://www.cisco.com/c/en/us/products/servers-unified-computing/ucs-c-series-rack-servers/index.html

   http://www.cisco.com/c/en/us/products/servers-unified-computing/ucs-c-series-rack-servers/models-listing.html

   http://www.cisco.com/c/en/us/products/servers-unified-computing/ucs-b-series-blade-servers/index.html

   http://www.cisco.com/c/en/us/products/servers-unified-computing/ucs-b-series-blade-servers/models-comparison.html

   http://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-e-series-servers/data_sheet_c78-705787.pdf

For hardware specifications of the Cisco Services-Ready Engine for Cisco USP Versions 8.5.7 and earlier, please visit: http://wwwin.cisco.com/artg/products/sre/docs/SRE-DS.pdf.

Service and Support

Cisco offers a wide range of services programs to accelerate customer success. These innovative services programs are delivered through a unique combination of people, processes, tools, and partners, resulting in high levels of customer satisfaction. Cisco Services can help you protect your network investment, optimize network operations, and prepare your network for new applications to extend network intelligence and the power of your business. For more information about Cisco Services, please visit Cisco Technical Support Services.

For More Information

For more information about Cisco Unified SIP Proxy, contact your local Cisco account representative.