AIX Version 4.3 Differences Guide

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of the routing applications are ported to AIX, specifically, ndpd-router and updates to ndpd-host and ndp. AIX 4.3.2 adds the following IPv6 functions: • IPv6 unicast routing support • IPv6 multicast routing support - no mrouted6 though • IPv6 anycast address support - mostly receive processing • IPv6 multi-homed link local and site local support. The reason for adding multi-homed host support is because most routers are multi-homed and need the ability to reference different hosts on different links at the link local and site local levels. 7.6.2.1 IPv6 Unicast Routing A packet sent to a unicast address is delivered to the interface identified by that address. There are two main aspects added in AIX 4.3.2: ndpd-router and the some netinet changes. The first major function is ndpd-router. The ndpd-router command provides a protocol engine for NDP and RIPng. It provides a simple method to distribute routes between gateways. This function is redundantly provided by gated. The routing specific mechanisms, like router advertisements and answers to router solicitations are handled by ndpd-router. RIPng is the follow-on for RIP with regards to IPv6. The other major function is to provide extensions to the icmpv6 support so that all the NDP messages are supported. The new messages are for handling redirects. The modifications to the IP input path allows the forwarding of IPv6 packets between interfaces on the same machine. This function is identical to the IPv4 low-level routing function. The ip6forwarding function handles redirecting incoming packets. 7.6.2.2 IPv6 Multicast Routing The use of Internet Protocol (IP) multicasting enables a message to be transmitted to a group of hosts, instead of having to address and send the message to each group member individually. The Class D Internet addressing is used for multicasting. In general, there are two pieces to multicast routing. One piece is a method to determine where the multicast message should be sent, and the other is a method to dynamically change the place the packet goes based on network conditions. In IPv4, the mrouted daemon handles both functions with the help of IGMP. In IPv6, multicasting, and its related membership function, is all handled in icmpv6. Usually, this is done by maintaining a table similar to a routing table that is used to direct messages. In IPv4, this table is maintained in netinet and updated by mrouted. In IPv6, INRIA adds it as an additional routing table. This way the route command could be used to manipulate static multicast routes. 170 AIX Version 4.3 Differences Guide
7.6.2.3 IPv6 Anycast Address Support In AIX 4.3, the anycast is similar to INRIA. This method involved creating anycast addresses and associating them with a specific interface. This is acceptable because, on incoming packet reception, AIX would talk to all the addresses on the address lists. But to modify these addresses, a user would have to remember the associated interface. INRIA has moved anycast addresses on to a private list. The management is separate from the normal addresses. In fact, a command called any6 is added to manipulate these addresses. 7.6.2.4 IPv6 Multi-Homed Support AIX 4.3.0 is supported for IPv6 and multi-homed global addresses. This falls out naturally from the IPv6 routing table. The problem is with site local and link local addresses. The problem with site local addresses is the definition of network boundaries. This is not handled by the kernel. The problem with link local addresses is which interface to go out of for doing the initial NDP neighbor solicitations. The code defines a #define, MULTI_HOMED, that can have four values. Each value has different actions and operations. The AIX IPv6 will support the host requirements from the following RFCs: • RFC 1883 - Internet Protocol, Version 6 (IPv6) Specification • RFC 1884 - IP Version 6 Addressing Architecture • RFC 1885 - Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) • RFC 1886 - DNS Extensions to support IP Version 6 • RFC 1887 - An Architecture for IPv6 Unicast Address Allocation • RFC 1970 - Neighbor Discovery for IP Version 6 (IPv6) • RFC 1971 - IPv6 Stateless Address Autoconfiguration • RFC 1972 - A Method for the Transmission of IPv6 Packets over Ethernet networks • RFC 1981 - Path MTU Discovery for IP Version 6 • RFC 2019 - A Method for the Transmission of IPv6 Packets over FDDI networks For a complete list of all RFCs and Internet drafts pertaining to IPv6, refer to http://www.ietf.org/html.charters/ipngwg-charter.html. This is an evolving list, and AIX conforms to a subset of these. 7.6.3 Commands Changed The following AIX commands have been changed to support IPv6 routing: • ndpd-host • ndp • route • autoconf6 • hostnew • nslookup • ifconfig Networking Enhancements 171
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AIX Version 4.3 Differences Guide R
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Take Note! Before using this inform
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2.12.5 Boot Logical Volume Scaling
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Chapter 6. System Management and Ut
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7.1.8 Commands and Applications Ena
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8.2.23.1 Input Method Values . . .
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10.6 National Language Enhancements
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xiv AIX Version 4.3 Differences Gui
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51. Documentation Search Service. .
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51. List of Locales for Euro-Specif
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The authors of the First Edition ar
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xxii AIX Version 4.3 Differences Gu
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The RS/6000 Enterprise Server Model
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• 1 MB of Level 2 (L2) cache. •
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The Model 260 is designed for custo
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Table 3 is a comparison of various
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1.6 Gigabit Fibre Channel Adapter A
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12 AIX Version 4.3 Differences Guid
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work as on previous releases of AIX
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For AIX systems using AIX Version 3
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destructive overlay can be caught w
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The maximum number of file descript
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2.12.1.2 Network Memory Buffer Pool
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2.12.3 Larger Pipe Buffer Pool The
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The nice value has a much greater i
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Table 9. Old Priority Algorithm, sc
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where it can be directly manipulate
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one trillion terabytes. Other 64-bi
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ecently used mappings of segment nu
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• Executable data and BSS Followi
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Figure 6. Interfacing 64-Bit Proces
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that can be larger than 2 32 for la
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The addr struct is a library-side s
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It is also possible to have a situa
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A single remap struct fits into a s
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Depending on the execution environm
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3.2.4.2 Parameter Passing Examples
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On AIX 4.3, the same algorithm is u
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All of the following services are e
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UNIX98 interface will add very litt
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cases, the user is free to override
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These ANSI types are defined throug
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The following libraries and APIs ar
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symbols exported with svc3264 are a
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In general, no command user interfa
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mlockall() mq_getattr() mq_open() m
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from the address space. Termination
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4.3.2 The M:N Model In the M:N mode
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sharing the VPs. When the mutex loc
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4.4 Pthreads Suspend and Resume (4.
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4.6.1 Opening Files for Direct I/O
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performance of network memory buffe
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The send_file call only supports th
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• The volume group's disks must b
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The relationship of factor -t, PP n
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The LVM in AIX 4.3.2 supports both
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MAX LVs: 256 FREE PPs: 81 (324 mega
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extended to 511 logical volumes and
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Note Although the chlvcopy command
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Figure 11. Default SMIT Menu SMIT p
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• NIM Install Manager Figure 13 s
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interface. Web-Based System Manager
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configuration change tasks in which
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Find Close Exit Opens a search dial
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Tree Changes the presentation of ic
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6.2.5.11 Status Line The status lin
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Note: The Web-Based System Manager
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A multiple selection is enabled for
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Figure 23. Example of Container Win
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6.4.3 Registered Applications This
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6.5 Daylight Savings Time Before AI
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• Secondary transfer, also referr
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• Since the check mark sign is pa
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8.3.4.14 Scrolled Window and Scroll
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• New XmComboBox XmNpositionMode
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This application uses both the X Wi
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8.5.4 New OpenGL Extensions (4.3.2)
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232 AIX Version 4.3 Differences Gui
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The browser must be a forms-capable
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Figure 50. Documentation Search Ser
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If you have not run Netscape previo
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Previously, the man command had to
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Single-Byte Character Set Support (
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abandoning its standards-based inte
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• __mblen_std() - For all other c
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Locale method Unicode locales ISO88
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Unicode Locale Chinese (Traditional
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10.5 Euro Symbol Support for AIX (4
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Any UTF-8 based locale installed on
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Encoding UTF-8 multi-byte: Byte S
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Keyword p_sign_posn n_sign_posn Des
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Table 54 summarizes the AIX keyboar
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10.5.4 Input Methods for the Euro S
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A selection menu can be closed by p
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Figure 55. UNIVERSAL Input Method:
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Table 56 summarizes the new iconv c
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Converter Type Fileset UCS-2_IBM-11
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• X11.loc.XX_XX.Dt.rte • X11.lo
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Figure 56. German UTF-8: Add Additi
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SMIT uses the chlang command to set
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os.loc.iso.de_DE bos.loc.iso.en_US
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• Thai Cultural Conventions (Unic
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In Japan, most of operating systems
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X11.base.rte This fileset ships the
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Documentation Search Service does n
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Figure 59. Searching Japanese Docum
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Figure 61. A Japanese Book 10.7.3.2
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Figure 63. Input Chinese Character
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Figure 65. A Chinese Book for Insta
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Client 3 capabilities. In this case
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Figure 67. Stand-Alone LDAP Directo
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provides encryption of data and tra
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Changes to schema definitions previ
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environments may vary significantly
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• AIX Version 4 Getting Started,
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• http://www.lexmark.com • http
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How Customers Can Get ITSO Redbooks
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LDIF LFT LID LP LPI LPP LPR/LPD LDA
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authentication 300 authentication h
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E ed command 141 EDTMPDIR 141 effec
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kernel changes. crash command 17 de
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-command security 166 RDB glue 299
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web based systems management 95 arc
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SG24-2014-01 Printed in the U.S.A.
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AIX Version 4.3 Differences Guide

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