AIX Version 4.3 Differences Guide

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Error messages are identified by having a zero in the high-order bit of their message Type field values. Thus, error messages have message Types from 0 to 127. Table 28 lists the different types and their meanings. Table 28. ICMPv6 Error Messages Type Description Code Cause 1 Destination unreachable 0 No route to destination 1 Communication with destination administratively prohibited 2 Not a neighbor 3 Address unreachable 4 Port unreachable 2 Packet too big 0 Packet too big 3 Time exceeded 0 Hop limit exceeded in transit 1 Fragment reassembly time exceeded 4 Parameter problem 0 Erroneous header field encountered 1 Unrecognized Next Header type encountered 2 Unrecognized IPv6 option encountered Informational messages have message Type values from 128 to 255. Table 28 lists the information types and their meanings. Table 29. ICMPv6 Informational Messages Type Description 128 Echo request 129 Echo reply 130 Group membership query 131 Group membership report 132 Group membership reduction Note: For more detailed information relating to message types and formats, refer to RFC 1885. 7.1.5 Tunneling over IPv4 The key to a successful IPv6 transition is compatibility with the existing installed base of IPv4 hosts and routers. Maintaining compatibility with IPv4, while deploying IPv6, streamlines the task of transitioning the Internet to IPv6. In most deployment scenarios, the IPv6 routing infrastructure will be built-up over time. While the IPv6 infrastructure is being deployed, the existing IPv4 routing infrastructure can remain functional and can be used to carry IPv6 traffic. 152 AIX Version 4.3 Differences Guide
Tunneling provides a way to use an existing IPv4 routing infrastructure to carry IPv6 traffic. IPv6/IPv4 hosts and routers can tunnel IPv6 datagrams over regions of IPv4 routing topology by encapsulating them within IPv4 packets. Tunneling can be used in a variety of ways: • Router-to-Router. IPv6/IPv4 routers interconnected by an IPv4 infrastructure can tunnel IPv6 packets between themselves. In this case, the tunnel spans one segment of the end-to-end path that the IPv6 packet takes. • Host-to-Router. IPv6/IPv4 hosts can tunnel IPv6 packets to an intermediary IPv6/IPv4 router that is reachable through an IPv4 infrastructure. This type of tunnel spans the first segment of the packet's end-to-end path. • Host-to-Host. IPv6/IPv4 hosts that are interconnected by an IPv4 infrastructure can tunnel IPv6 packets between themselves. In this case, the tunnel spans the entire end-to-end path that the packet takes. • Router-to-Host. IPv6/IPv4 routers can tunnel IPv6 packets to their final destination IPv6/IPv4 host. This tunnel spans only the last segment of the end-to-end path. Tunneling techniques are usually classified according to the mechanism by which the encapsulating node determines the address of the node at the end of the tunnel. In the first two tunneling methods listed above, router-to-router and host-to-router, the IPv6 packet is being tunneled to a router. In the last two tunneling methods, host-to-host and router-to-host, the IPv6 packet is tunneled all the way to its final destination. 7.1.5.1 Tunneling Mechanisms The following is the path taken when tunneling: • The entry node of the tunnel (the encapsulating node) creates an encapsulating IPv4 header and transmits the encapsulated packet. • The exit node of the tunnel (the decapsulating node) receives the encapsulated packet, removes the IPv4 header, updates the IPv6 header, and processes the received IPv6 packet. • The encapsulating node needs to maintain soft state information for each tunnel, such as the MTU of the tunnel, to process IPv6 packets forwarded into the tunnel. Note: The information presented above is a brief summary of tunneling from RFC 1933. Refer to the RFC for more detailed information on this topic. 7.1.6 IP Security (IPSec) IPSec (IP Security) is an IP-layer security mechanism for IP Version 4 (IPv4) and IP Version 6 (IPv6). IPSec is a security protocol in the IP layer that provides security services to ensure packet authentication, integrity, access control, and confidentiality. A secure tunnel is established between the two systems to perform message encryption and message authentication. There are two security mechanisms for IP. The first is the Authentication Header (AH) that provides integrity and authentication without encryption. The second is Networking Enhancements 153
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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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Page 128 and 129: Find Close Exit Opens a search dial
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Page 134 and 135: Note: The Web-Based System Manager
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Page 162 and 163: In summary, Table 25 shows the diff
Page 164 and 165: 6.14 Error Message Templates (4.3.2
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Page 182 and 183: Figure 33. Typical Output from the
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down to a single round trip. It is
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ackwards compatibility; however, it
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The following is a list of AIX XIM
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mechanism to permit an IM Server to
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• XGetOMValues() • XDisplayOfOM
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locale.ldx /usr/lib/X11/locale/iso8
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objects, so the default installatio
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the same area just like real-world
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• Snap-back scrolling, a feature
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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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