Release Notes for the Cisco Global Site Selector, Release 4.1(1)

Transcription

1 Release s for the Cisco Global Site Selector, Release 4.1(1) November, 2011 The most current Cisco documentation for released products is available on Cisco.com. For the complete set of Cisco Global Site Selector user documentation, go to the following URL: Contents These release notes apply to Cisco Global Site Selector (GSS) software Version 4.1(1) This document contains the following sections: Upgrading or Downgrading the GSS Software New Features in GSS 4.1(1) Obtaining Technical Assistance Caveats Obtaining Documentation and Submitting a Service Request Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA USA 2011 Cisco Systems, Inc. All rights reserved.

2 Upgrading or Downgrading the GSS Software Upgrading or Downgrading the GSS Software Table 1 provides information about the upgrade sequence for previous software versions that you must follow before you upgrade to Version 4.1(1). For accessing GUI after upgrading the GSS device from software version 3.2(0) to software version 4.1(0), clear the cache and then go to the URL and press Enter. This is due to the change in GUI look and feel. The GSS software release 4.1(x) is supported only on GSS 4492R, and is not supported on the following hardware: GSS 4491, GSS 4490, or GSS You must upgrade the primary GSSM first, followed by the other GSS devices in your network. After you upgrade the primary GSSM, ensure that each GSS device in your network to be upgraded is connected to the primary GSS device. If you upgrade the non-primary GSS prior to the primary GSSM upgrade, you might experience unexpected behavior. When upgrading the GSS device from software versions that are earlier than 3.2(0) to software Version 4.1(x), the device will reboot twice to complete the upgrade. Table 1 GSS Software Upgrade Sequence for 4.1(1) From version... To version (x) or 1.1.(1.7.0) 1.1 (prior to 1.1.(1.7.0)) 1.1.(1.7.0) 1.2.(2.2.0) 1.2 (x) where x = 1 or 2 1.3(3) 2 Release s for the Cisco Global Site Selector, Release 4.1(1)

3 New Features in GSS 4.1(1) Table 1 GSS Software Upgrade Sequence for 4.1(1) From version... To version (3) 4.1(0) 2.0(1) 4.1(1) 2.0(2) 2.0(3) 2.0(4) 2.0(5) 3.0(1) 3.0(2) 3.1(0) 3.1(1) 3.1(2) 3.2(0) 4.1(0) 4.1(1) The Cisco Global Site Selector Administration Guide (Software Version 4.1(0)) contains the required information to upgrade your GSS software. New Features in GSS 4.1(1) This section describes the new and updated GSS software Version 4.1(1) features and contains the following topics: GeoIP Usability Enhancement GeoIP Usability Enhancement GSS software Version 4.1(1) supports the GeoIP usability enhancement, you can now download and install the GeoIP database from MaxMind, a third-party vendor by providing the username and a password. The database will be downloaded and installed on the entire mesh. For more information on downloading and installing GeoIP database, see the Cisco Global Site Selector GUI-based Global Server Load-Balancing Configuration Guide and the Cisco Global Site Selector CLI-based Global Server Load-Balancing Configuration Guide. Figures 1 through 3 depict the GUI enhancement of the GeoIP database download feature. Figure 1 displays the Maxmind Licence Page. Release s for the Cisco Global Site Selector, Release 4.1(1) 3

4 New Features in GSS 4.1(1) Figure 1 Maxmind License Page Figure 2 displays the Download and Install page which allows you to download the GeoIP database file using the Download GeoIP database navigation link in the GUI. Figure 2 GeoIP Download and Install Page Figure 3 displays the GeoIP database download and install status page which contains the following columns: the name of the Global Site Selector, the download status, the last downloaded version, the installation status and the last installed version. 4 Release s for the Cisco Global Site Selector, Release 4.1(1)

5 Caveats Figure 3 GeoIP Download and Install Status Page Caveats This section contains the resolved and open caveats for software version 4.1(1) and contains the following topics: Resolved Caveats for Software Version 4.1(1) Open Caveats for Software Version 4.1(1) Resolved Caveats for Software Version 4.1(1) This section lists the resolved caveats for software Version 4.1(1). CSCte43718 When an answer group change is being made on the GSS GUI, GSS is seeing dnsserver cores, which can be traced back to the change. CSCtq25770 The periodic back-up of the GeoIP database does not occur until it is initiated manually. Workaround: Use the geodb database periodic-backup now CLI command to initiate the periodic backup manually. CSCtr84553 Proximity fails when the proximity database is deleted many times which inturn fails to accept new connections and the proximity fails. Workaround: GSS restart or GSS stop followed by GSS start. CSCts43873 When the client/dproxy points to a different GSS than to the originally configured, the DNS query fails with sticky enabled. Workaround: GSS restart or GSS stop followed by GSS start. CSCts48660 GSS DRP agent sends false UDP length when UDP PATH-PROBE is enabled. These packets might get dropped by firewalls in the path. Release s for the Cisco Global Site Selector, Release 4.1(1) 5

6 Caveats CSCts97381 GSS stops intermittently and does not reboot. CSCtt05592 User fails to login when TACACS is integrated with GSS 4.1(0) TACACS user configured to use SSH is affected. Workaround: Configure a local user on GSS same as that of TACACS user. CSCtt10334 The ethernet interface configuration setting auto-speed which is set to 1000Mb/s does not work. Workaround: Set the speed to 100 Mb/s. CSCtt15742 When you configure or modify DNS rule through GUI, the sticky method setting appears hidden. Workaround: Expand the window. CSCtt15911 If the GSS GUI is in use, and the GSS is restarted through CLI, the next action that is taken on the GUI causes an infinite redirect loop. Workaround: 1. Close the browser and re-open a new one. 2. Remove the index.jsp from the URL and press Enter key. 3. Refresh the page or press the F5 key. CSCtt37643 When the GeoDB import operation is in progress CLI is not accessible. CSCtu17950 When you try to delete a DNS rule through CLI, it fails. Workaround: Configure DNS through GUI. CSCtz88393 In GSS 3.x and earlier versions, if an AAAA query hits the GSS box and if the NS Forward DNS clause is selected, the AAAA queries will not be forwarded to the corresponding Name Server. Instead, an NOERROR will be returned by GSS. This behavior has been corrected from GSS 4.x versions. If a AAAA query hits the GSS box and if NS Forward DNS clause is selected, the AAAA queries will be forwarded to the corresponding Name Server. If the Name Server is in offline/suspended state, the GSS returns an SERVFAIL. Workaround: None Open Caveats for Software Version 4.1(1) This section lists the open caveats for software Version 4.1(1): CSCtc76185 When using the CLI to manage the GSS, on rare occasions the answer suspend functions does not work. Workaround: Use the GSS GUI to suspend the answer. CSCtg97066 When the GSS is integrated with TACACS+ and the user is accessing the GSS GUI, on rare occasions the Tomcat process restarts and generates a core. CSCtj86311 When an HTTP-HEAD KAL response from a VIP is delayed (because FW drops the first 3 SYNs), the GSS mishandles the TCP session and marks the KAL as failed. 6 Release s for the Cisco Global Site Selector, Release 4.1(1)

7 Caveats CSCtk56123 When sticky and proximity are enabled on GSS and under the DNS rule, Wait is enabled, the GSS stops serving answers (DNS request timeout on the client end) for some clients. Workaround: Disable sticky or proximity, or disable the Wait. CSCtl44290 Sometimes the log rotate feature does not work on gss.log and/or syslog-messages.log files. Workaround: Reload GSS. CSCtt15709 Show sticky database X displays an ID number for the answer name instead of an IP or Name. Workaround: Enter the Show sticky database answer X for every answer name on the GSS to obtain the ID numbers so you have a reference. The answer field should not contain any space characters. CSCtu33573 Sometimes a core file gets generated when you run the show statistics keepalive command while checking the keepalive statistics. CSCtw46343 Sometimes the show and configuration commands for the proximity fail when fallback probe method is configured and the probing starts using path probe (after ICMP and TCP probing fail). Workaround: Restart GSS. CSCtx47230 When the number of states/countries added in a region crosses more than 50, the DNS server restarts in a loop. Workaround: Split regions with more than 50 states/countries into multiple regions and configure all these regions into the same Source Address List. CSCtz80103 Upon using the MaxMind GeoIP database which is downloaded after November 21, 2012, the following commands may not display any output and may generate a core file when executed: geodb database lookup <ip-address> show statistics dns geo-region Workaround: Use the MaxMind database which is downloaded on or before November 21, Release s for the Cisco Global Site Selector, Release 4.1(1) 7

8 Obtaining Documentation and Submitting a Service Request Obtaining Documentation and Submitting a Service Request For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: Subscribe to the What s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0. Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R) 8 Release s for the Cisco Global Site Selector, Release 4.1(1)