Page 2 - Legal Notices
2 Legal Notices The information in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to thismanual, including, but not limited to, the implied warranties ofmerchantability and fitness for a particular purpose. Hewlett-Packardshall not be hel...
Page 3 - Contents; Overview of Installation and Configuration
Contents 3 1. What are HP-UX VLANs? HP-UX VLAN Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Benefits of HP-UX VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Types of VLANs Suppo...
Page 5 - Tables
Tables 5 Table 1-1. Needed Patches for HP-UX VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 2-1. Summary of VLAN Tagging Assignment . . . . . . . . . . . . . . . . . . . . . . . . . 24Table 2-2. Allowable Values for Parameters in vlanconf File . . . . . . . . . . . . . . ....
Page 7 - Figures
Figures 7 Figure 1-1. VLANs (Virtual LANs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 1-2. IEEE 802.1Q VLAN Tag in Ethernet Frame. . . . . . . . . . . . . . . . . . . . . . 15Figure 1-3. VLANS Overlapping or Sharing the Same LAN Card Port . . . . . . . . ....
Page 9 - Chapter 1
Page 10 - Physical View
What are HP-UX VLANs? Chapter 1 10 A Virtual LAN (VLAN) is a logical or virtual network segment that canspan multiple physical network segments. Using VLANs, you can groupswitched-network end-stations by: • department, such as engineering and manufacturing, • type of user, such as power users or tho...
Page 12 - Following are some of the features of HP-UX VLANs:
What are HP-UX VLANs? HP-UX VLAN Features Chapter 1 12 HP-UX VLAN Features Following are some of the features of HP-UX VLANs: • HP-UX VLANs are implemented with host-based IEEE 802.1Q/pcompliant tagging to allow configuring multiple VLANs on a givenEthernet LAN card based on their IP-subnet, protoco...
Page 13 - Benefits of HP-UX VLANs
What are HP-UX VLANs? Benefits of HP-UX VLANs Chapter 1 13 Benefits of HP-UX VLANs The advantages of HP-UX VLANs are: • Physically dispersed workgroups can be logically connected withinthe same broadcast domain to appear as if they are on the samephysical LAN. • A single physical link can simultaneo...
Page 14 - Types of VLANs Supported by HP-UX; The types of HP-UX VLANs that you can create are as follows:
What are HP-UX VLANs? Types of VLANs Supported by HP-UX Chapter 1 14 Types of VLANs Supported by HP-UX The types of HP-UX VLANs that you can create are as follows: • NIC-Port Based--A group of physical LAN card ports belong to thesame layer-2 broadcast domain. Each LAN card port transmits andreceive...
Page 16 - Server
What are HP-UX VLANs? HP-UX VLAN Tagging Chapter 1 16 Figure 1-3 VLANS Overlapping or Sharing the Same LAN Card Port Server HP Gigabit or Fast Ethernet LAN Card Port VLAN0 VLAN1024
Page 17 - System and Software Requirements; Type of HP System Required; Needed Patches for HP-UX VLANs
What are HP-UX VLANs? System and Software Requirements Chapter 1 17 System and Software Requirements Following are the hardware and software requirements for VLANs as ofMarch 2002: • Type of HP System Required — HP-UX Precision Architecture (PA-RISC). • OS Required — HP-UX 11i (11.11). New HP server...
Page 18 - SAM; Driver
What are HP-UX VLANs? System and Software Requirements Chapter 1 18 SAM PHCO_25866 * Either the 100Base-T or Gigabit patchmay be optional depending on whichlink type you have. Table 1-1 Needed Patches (Continued)for HP-UX VLANs (Continued) Driver 11i Patch #
Page 19 - Supported Switches; Extreme Summit 7i
What are HP-UX VLANs? Supported Switches Chapter 1 19 Supported Switches HP-UX VLANs are supported with switches that implement IEEE802.1Q-compliant VLAN tagging. The switches must implement at leastport-based VLANs and must be VLAN-tag aware. The following switchesare among those that support HP-UX...
Page 20 - Unsupported Functionality; HP-UX VLANs do not support the following functionality:
What are HP-UX VLANs? Unsupported Functionality Chapter 1 20 Unsupported Functionality HP-UX VLANs do not support the following functionality: • GARP VLAN registration protocol (GVRP) is currently notsupported. HP-UX VLANs will not send GVRP messages or interpretthem. • HP-UX VLANs do not operate on...
Page 21 - Chapter 2
Chapter 2 21 2 Overview of Installation andConfiguration
Page 22 - Overview of Installation and Configuration; Communication between VLANS Requires an External Router
Overview of Installation and Configuration Planning HP-UX VLANs Chapter 2 22 Planning HP-UX VLANs The following requirements must be satisfied before setting up VLANs inan HP-UX network: • In order for both end stations of a VLAN to communicate, both theend-station LAN cards and the switch ports tha...
Page 23 - How to Configure VLANs on the Switch; Tagged and Untagged VLAN Technology in Same Network
Overview of Installation and Configuration How to Configure VLANs on the Switch Chapter 2 23 How to Configure VLANs on the Switch IEEE 802.1Q compliant devices and legacy/untagged VLANs can coexiston the same networks, but legacy/untagged VLANS require a separatelink, whereas the 802.1Q tagged VLANs...
Page 24 - or more
Overview of Installation and Configuration How to Configure VLANs on the Switch Chapter 2 24 Table 2-1 Summary of VLAN Tagging Assignment VLANs PerPort Tagging Scheme 1 Untagged or Tagged. If the device connectedto the port is 802.1Q-compliant, then therecommended choice is “Tagged.” 2 or more 1 VLA...
Page 25 - How to Configure VLANs on HP-UX; lanadmin; lanadmin
Overview of Installation and Configuration How to Configure VLANs on HP-UX Chapter 2 25 How to Configure VLANs on HP-UX Choose Configuration Method: Use SAM; Editvlanconf; Use lanadmin There are three ways to configure VLANs: the first two methods preserveconfiguration changes across reboots; the th...
Page 26 - Configuration Process; NOTE
Overview of Installation and Configuration Configuration Process Chapter 2 26 Configuration Process Following are the steps to configure HP-UX VLANs. These steps are fordefining VLAN membership, assigning names, VLAN IDs, and portassignments. This procedure assumes that the switches can add VLANtags...
Page 27 - Properties of a VLAN
Overview of Installation and Configuration Properties of a VLAN Chapter 2 27 Properties of a VLAN When a VLAN is created on a given LAN card port, (see “Creating aVLAN”), the system generates a virtual PPA or VPPA which can be usedto send and receive 802.1Q tagged frames on that LAN card. EachHP-UX ...
Page 28 - Special Case of VLAN ID 0--Priority Tagged Frames; Promiscuous Mode Characteristics
Overview of Installation and Configuration Special Case of VLAN ID 0--Priority Tagged Frames Chapter 2 28 Special Case of VLAN ID 0--Priority TaggedFrames VLAN ID 0 means that the frame doesn’t belong to any VLAN but has802.1p priority information. Ensure that any switches used with HP-UXVLANs suppo...
Page 29 - Allowable Values for HP VLANs; Allowable Values for Parameters in vlanconf File
Overview of Installation and Configuration Allowable Values for HP VLANs Chapter 2 29 Allowable Values for HP VLANs Table 2-2 lists the allowable values for configuring VLANs in the/etc/rc.config.d/vlanconf file. It describes the parameter functions,default values, and allowable ranges. For the form...
Page 30 - Default is an empty string lanadmin will display it as UNNAMED.; Allowable Values for Parameters in vlanconf File (Continued)
Overview of Installation and Configuration Allowable Values for HP VLANs Chapter 2 30 1 Default is an empty string; lanadmin will display it as UNNAMED. Table 2-2 Allowable Values for Parameters in vlanconf File (Continued) Parameter --description Range andRestrictions Default Type
Page 31 - Using VLANs with MC/ServiceGuard; VLANs and Service Guard; vlanid
Overview of Installation and Configuration Using VLANs with MC/ServiceGuard Chapter 2 31 Using VLANs with MC/ServiceGuard You can create MC ServiceGuard fail-over groups with VLANs as long asthe primary and standby links are both VLAN interfaces with the sameVLAN ID. See Figure 2-2 for an example. P...
Page 33 - How do Pri and ToS Override Affect My Inbound and Outbound frames?; Consider the following command.; lanadmin -V create vlanid; The VLAN ID field in the tag will be VID without exception.; Priority Override Setting; VLAN Tag priority setting is PRI.
Overview of Installation and Configuration How do Pri and ToS Override Affect My Inbound and Outbound frames? Chapter 2 33 How do Pri and ToS Override Affect MyInbound and Outbound frames? Consider the following command. lanadmin -V create vlanid VID pri PRI tos TOS pri_override PO tos_override TO 6...
Page 35 - Where to Get More Information; man vlan
Overview of Installation and Configuration Setting 802.1p Priority, ToS, and Overrides Chapter 2 35 Setting 802.1p Priority, ToS, and Overrides 802.1p priority is the priority in the tag in the frame header. Switchescan use the 802.1p priority. ToS is the IP precedence in the IP header. Switches ign...
Page 37 - Chapter 3; Configuring VLANs Using SAM
Page 38 - There are then 2 ways to access VLAN configuration. Either choose; List Pulldown with Virtual LANs Displayed
Configuring VLANs Using SAM Configuring VLANs Using SAM Chapter 3 38 Configuring VLANs Using SAM You can use SAM to configure VLANs by completing the following steps: 1. Log in as root . 2. Check the HP-UX version by typing: uname -a . The version should be HP-UX 11i (11.11) 3. At the HP-UX prompt, ...
Page 39 - displayed. When you select a LAN card and then use the; Create; screen appears (Figure; VLAN ID; , enter any number between 0 and 4094 and use
Configuring VLANs Using SAM Configuring VLANs Using SAM Chapter 3 39 6. On the Virtual LAN screen, available VLAN-aware cards are displayed. When you select a LAN card and then use the Create VLAN pulldown (Figure 3-2), the Create VLAN screen appears (Figure 3-3). For the VLAN ID , enter any number ...
Page 40 - . You then highlight the; Configure IP Address; pulldown action. This; Enabled
Configuring VLANs Using SAM Configuring VLANs Using SAM Chapter 3 40 Figure 3-3 Create Virtual LANs After you have assigned a VLAN ID, the VLAN then shows on themain screen with the status Not Configured . You then highlight the VLAN, and select the Configure IP Address pulldown action. This display...
Page 41 - At any time, view the online help pulldown menu for doing any of the
Configuring VLANs Using SAM Configuring VLANs Using SAM Chapter 3 41 On the Modify VLAN Properties screen, the fields are all optional;the data elements are the same as discussed in the chapter“Overview of Installation and Configuration:” VLAN name, VPPA,priority, ToS, and overrides. Figure 3-4 Add ...
Page 43 - Chapter 4
Chapter 4 43 4 Configuring VLANs by Editingvlanconf File
Page 44 - Configuring VLANs by Editing vlanconf File; Modifying Parameters in vlanconf File
Configuring VLANs by Editing vlanconf File Modifying Parameters in vlanconf File Chapter 4 44 Modifying Parameters in vlanconf File Following is the format of the /etc/rc.config.d/vlanconf file. Topermanently save changes to this file, either use SAM or use a text editorsuch as “vi.” If you use the ...
Page 47 - Using lanadmin -V to Administer VLANs; Chapter 5
Using lanadmin -V to Administer VLANs Chapter 5 47 5 Using lanadmin -V toAdminister VLANs
Page 48 - Using the lanadmin -V Command for Administering VLANs; lanadmin Syntax
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 48 Using the lanadmin -V Command forAdministering VLANs To configure VLANs, you use either the GUI-based system adminmanager (SAM) or edit the configuration file with an editor. VLANconfiguration do...
Page 49 - Using lanadmin to Create a VLAN; lanscan
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 49 CONF_TOS or CONF_PRI) [pri_override <level>(CONF_PRI,IP_HEADER or CONF_TOS)] <vppa> -V scan -V info <vppa> -V basevppa -V help Using lanadmin to Create a VLAN Assume that the sy...
Page 50 - VLANx; Using lanadmin to Query for VLANs on a System
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 50 The VLAN (lan5000) appears in lanscan output just like a physicalinterface. VPPAs are identified by the string “ VLANx ” in the hardware path, where x is a number and is unique per VPPA. In the l...
Page 51 - Using a VLAN; Using lanadmin to Modify a VLAN; The properties of a VLAN can be modified using
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 51 Querying for a Single VPPA on a System You can query the VirtualPPA using the following command: lanadmin -V info <vppa> The info command will return the output in the following format when...
Page 52 - Successfully modified lan5000; Using lanadmin to Delete a VLAN; ifconfig
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 52 lanadmin -V modify vlanid 53 pri 3 5000 Successfully modified lan5000 Old value: vlanid 454 pri 6 New value: vlanid 53 pri 3 After the modification, the lanscan -v output will display: Hardware S...
Page 53 - stop
Using lanadmin -V to Administer VLANs Using the lanadmin -V Command for Administering VLANs Chapter 5 53 lanadmin -V delete 5000 The lanadmin -p <PPA> , command always displays the displays the applications and commands that use or are configured on the interface.Lets take another example. Bef...
Page 55 - Appendix A; Troubleshooting
Page 56 - Diagnostic Flowcharts.
Troubleshooting Appendix A 56 This chapter provides guidelines for troubleshooting VLANs. It containsthe following sections: • Diagnostic Flowcharts. • Use of lanadmin and lanscan commands and scripts for testing or troubleshooting VLANs.
Page 57 - Diagnostic Flowcharts; Flowchart Descriptions
Troubleshooting Diagnostic Flowcharts Appendix A 57 Diagnostic Flowcharts Table A-1 summarizes the types of network tests in the diagnosticflowcharts. Follow the flowcharts in sequence beginning with Flowchart1. Table A-1 Flowchart Descriptions Chart Type of Test Purpose 1 Link Level Tests Checks co...
Page 58 - Flowchart 1: Link Level Tests; linkloop
Troubleshooting Flowchart 1: Link Level Tests Appendix A 58 Flowchart 1: Link Level Tests Check communications between link levels on the source and target hostusing the linkloop , lanscan , and lanadmin commands. The source interface should be a VPPA, that is, a PPA corresponding to a VLANinterface...
Page 59 - Link Level
Troubleshooting Flowchart 1: Link Level Tests Appendix A 59 Figure A-1 Flowchart 1 Link Level lanscan and lanadmin Tests Tests linkloop Test
Page 60 - Flowchart 1a: Linkloop Test; Flowchart 1a
Troubleshooting Flowchart 1: Link Level Tests Appendix A 60 Flowchart 1a: Linkloop Test Figure A-2 Flowchart 1a Linkloop YES Linkoop successful? NO Test Execute NO Re-check remote host address YES Network-Level lanscan/lanadmin Tests Loopback FAILED; Address has bad format or Not an individual addre...
Page 61 - Flowchart 1a Procedures
Troubleshooting Flowchart 1: Link Level Tests Appendix A 61 Flowchart 1a Procedures • Execute linkloop to remote host. If linkloop is successful, continue to Network Test. Else if linkloop fails note which error was returned. • If loopback failed error = “Address has bad format” or “not anindividual...
Page 64 - Flowchart 2: Network Level Tests; Flowchart 2; Network
Troubleshooting Flowchart 2: Network Level Tests Appendix A 64 Flowchart 2: Network Level Tests Figure A-4 Flowchart 2 Network Tests ARP Test ping Test Level
Page 65 - Flowchart 2 Procedures; See Flowchart 2a to validate
Troubleshooting Flowchart 2: Network Level Tests Appendix A 65 Flowchart 2 Procedures • See Flowchart 2a to validate ARP entries and remote host availability. • See Flowchart 2b to check communication between network layers onsource and target host using ping.
Page 67 - If the ARP entry is incorrect or not complete, use
Troubleshooting Flowchart 2: Network Level Tests Appendix A 67 Flowchart 2a Procedures • Use ARP to verify that an entry exists for the remote host in yoursystem's ARP cache by executing arp hostname • If there is no ARP entry for the remote host, check to see if theremote host is up. If not, bring ...
Page 68 - continued
Troubleshooting Flowchart 2: Network Level Tests Appendix A 68 Flowchart 2b: ping Test Figure A-6 Flowchart 2b ping Test ping successful? NO YES Execute ping remotehost Validate network, remote host, and configuration settings Stop YES continued
Page 69 - Execute ping to remote host using
Troubleshooting Flowchart 2: Network Level Tests Appendix A 69 Flowchart 2b Procedures • Execute ping to remote host using ping . • If ping is successful, stop. If not, validate network, remote host, andconfiguration settings. Verify the routing tables using the netstat -rn command.
Page 71 - If network unreachable error, go to the Configuration Tests.
Troubleshooting Flowchart 2: Network Level Tests Appendix A 71 Flowchart 2b (continued) Procedures • If network unreachable error, go to the Configuration Tests. • If no response from ping, validate switches in path support VLANsand remote host supports them as well. Otherwise, reconfigurenetwork pa...
Page 72 - NetTL Trace and Log of VLANs; Tracing Output from a Gigabit Ethernet Card
Troubleshooting NetTL Trace and Log of VLANs Appendix A 72 NetTL Trace and Log of VLANs The nettl tool can be used to troubleshoot VLANs. Following is a sampletrace output from a Gigabit Ethernet card: Tracing Output from a Gigabit Ethernet Card ^^^^^^^^^^^^^^^^^^^^^^Gigabit Ethernet LAN/9000 Networ...
Page 75 - Glossary
Glossary 75 Glossary 802.1p: IEEE Standard supplement, nowincorporated in IEEE 802.1D. Defines 8priority levels for traffic classification at thedata link level and suggests how they mightbe used. 802.1Q: IEEE Standard that specifies thearchitecture for VLAN tagging, association,and VLAN-capable bri...
