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VLAN Aligned Subnets

Generally intended for SMB network environments.
Provides roughly 4,000 (3,999) aligned /24 subnets

VLANsSubnetNetwork
Area
Aligned Subnet RangeVLSM Range
100-19910.1.0.0/16110.1.0.0 - 10.1.99.25510.1.100.0 - 10.1.255.255
200-29910.2.0.0/16210.2.0.0 - 10.2.99.25510.2.100.0 - 10.2.255.255
300-39910.3.0.0/16310.3.0.0 - 10.3.99.25510.3.100.0 - 10.3.255.255
400-49910.4.0.0/16410.4.0.0 - 10.4.99.25510.4.100.0 - 10.4.255.255
500-59910.5.0.0/16510.5.0.0 - 10.5.99.25510.5.100.0 - 10.5.255.255
600-69910.6.0.0/16610.6.0.0 - 10.6.99.25510.6.100.0 - 10.6.255.255
700-79910.7.0.0/16710.7.0.0 - 10.7.99.25510.7.100.0 - 10.7.255.255
800-89910.8.0.0/16810.8.0.0 - 10.8.99.25510.8.100.0 - 10.8.255.255
900-99910.9.0.0/16910.9.0.0 - 10.9.99.25510.9.100.0 - 10.9.255.255
1000-109910.10.0.0/161010.10.0.0 - 10.10.99.25510.10.100.0 - 10.10.255.255
1100-119910.11.0.0/161110.11.0.0 - 10.11.99.25510.11.100.0 - 10.11.255.255
1200-129910.12.0.0/161210.12.0.0 - 10.12.99.25510.12.100.0 - 10.12.255.255
1300-139910.13.0.0/161310.13.0.0 - 10.13.99.25510.13.100.0 - 10.13.255.255
1400-149910.14.0.0/161410.14.0.0 - 10.14.99.25510.14.100.0 - 10.14.255.255
1500-159910.15.0.0/161510.15.0.0 - 10.15.99.25510.15.100.0 - 10.15.255.255
1600-169910.16.0.0/161610.16.0.0 - 10.16.99.25510.16.100.0 - 10.16.255.255
1700-179910.17.0.0/161710.17.0.0 - 10.17.99.25510.17.100.0 - 10.17.255.255
1800-189910.18.0.0/161810.18.0.0 - 10.18.99.25510.18.100.0 - 10.18.255.255
1900-199910.19.0.0/161910.19.0.0 - 10.19.99.25510.19.100.0 - 10.19.255.255
2000-209910.20.0.0/162010.20.0.0 - 10.20.99.25510.20.100.0 - 10.20.255.255
2100-219910.21.0.0/162110.21.0.0 - 10.21.99.25510.21.100.0 - 10.21.255.255
2200-229910.22.0.0/162210.22.0.0 - 10.22.99.25510.22.100.0 - 10.22.255.255
2300-239910.23.0.0/162310.23.0.0 - 10.23.99.25510.23.100.0 - 10.23.255.255
2400-249910.24.0.0/162410.24.0.0 - 10.24.99.25510.24.100.0 - 10.24.255.255
2500-259910.25.0.0/162510.25.0.0 - 10.25.99.25510.25.100.0 - 10.25.255.255
2600-269910.26.0.0/162610.26.0.0 - 10.26.99.25510.26.100.0 - 10.26.255.255
2700-279910.27.0.0/162710.27.0.0 - 10.27.99.25510.27.100.0 - 10.27.255.255
2800-289910.28.0.0/162810.28.0.0 - 10.28.99.25510.28.100.0 - 10.28.255.255
2900-299910.29.0.0/162910.29.0.0 - 10.29.99.25510.29.100.0 - 10.29.255.255
3000-309910.30.0.0/163010.30.0.0 - 10.30.99.25510.30.100.0 - 10.30.255.255
3100-319910.31.0.0/163110.31.0.0 - 10.31.99.25510.31.100.0 - 10.31.255.255
3200-329910.32.0.0/163210.32.0.0 - 10.32.99.25510.32.100.0 - 10.32.255.255
3300-339910.33.0.0/163310.33.0.0 - 10.33.99.25510.33.100.0 - 10.33.255.255
3400-349910.34.0.0/163410.34.0.0 - 10.34.99.25510.34.100.0 - 10.34.255.255
3500-359910.35.0.0/163510.35.0.0 - 10.35.99.25510.35.100.0 - 10.35.255.255
3600-369910.36.0.0/163610.36.0.0 - 10.36.99.25510.36.100.0 - 10.36.255.255
3700-379910.37.0.0/163710.37.0.0 - 10.37.99.25510.37.100.0 - 10.37.255.255
3800-389910.38.0.0/163810.38.0.0 - 10.38.99.25510.38.100.0 - 10.38.255.255
3900-399910.39.0.0/163910.39.0.0 - 10.39.99.25510.39.100.0 - 10.39.255.255

CentOS CPU Architectures

Over the years, there have been a number of CentOS CPU architecture targets spanning the different releases. We will take some time to show you which ones have remained consistent across most of the releases and which ones were supported during a more limited period of time.

The Data

VersionCPU Architectures
IntelIBMSunDEC
6
6.5i386x86_64
6.4i386x86_64
6.3i386x86_64
6.2i386x86_64
6.1i386x86_64
6.0i386x86_64
5
5.10i386x86_64
5.9i386x86_64
5.8i386x86_64
5.7i386x86_64
5.6i386x86_64
5.5i386x86_64
5.4i386x86_64
5.3i386x86_64
5.2i386x86_64
5.1i386x86_64
5.0i386x86_64
4
4.9i386x86_64ia64s390s390xalpha
4.8i386x86_64ia64s390s390xalpha
4.7i386x86_64ia64s390s390xalpha
4.6i386x86_64ia64s390s390xalpha
4.5i386x86_64ia64s390s390xalpha
4.4i386x86_64ia64s390s390xalpha
4.3i386x86_64ia64s390s390xalpha
4.2i386x86_64ia64s390s390xppcalpha
4.2betasparc
4.1i386x86_64ia64s390s390xppc
4.0i386x86_64ia64s390s390xppc
4.0betappc
3
3.9i386x86_64ia64s390s390x
3.8i386x86_64ia64s390s390x
3.7i386x86_64ia64s390s390x
3.6i386x86_64ia64s390s390x
3.5i386x86_64ia64s390s390x
3.4i386x86_64ia64s390s390x
3.3i386x86_64
3.1i386x86_64
2
2.1i386

CentOS 6 Repositories

The CentOS team has produced a number of yum-based CentOS 6 repositories. Many of the binary-focused repositories have remained the same throughout all of the CentOS 6 minor releases. However, there have been changes in naming of the source-focused repositories during the CentOS 6 lifecycle. In addition, two more repositories have been introduced since the initial introduction of CentOS 6.

  6.56.46.36.26.16.0
osi386xxxxxx
x86_64xxxxxx
SRPMSxx
Sourcexxxx
updatesi386xxxxxx
x86_64xxxxxx
SRPMSxx
Sourcexxxx
extrasi386xxxxxx
x86_64xxxxxx
SRPMSxx
Sourcexxxx
centosplusi386xxxxxx
x86_64xxxxxx
SRPMSxx
Sourcexxxx
contribi386xxxxxx
x86_64xxxxxx
SRPMSxxxxx
cri386xxxxxx
x86_64xxxxxx
SRPMSxxxx
Sourcexx
fasttracki386xxxxxx
x86_64xxxxxx
SRPMSxxx
Sourcexxxx
xen4x86_64xx
Sourcexx
SCLx86_64x
Sourcex

Binary-focused CentOS 6 repositories that have remained the same throughout all CentOS 6 minor releases:

  • os – i386 and x86_64
  • updates – i386 and x86_64
  • extras – i386 and x86_64
  • centosplus – i386 and x86_64
  • contrib – i386 and x86_64
  • cr – i386 and x86_64
  • fasttrack – i386 and x86_64

Source-focused CentOS 6 repositories that have changed throughout the CentOS 6 lifecycle:

  • os – SRPMS was changed to Source as of 6.2
  • updates – SRPMS was changed to Source as of 6.2
  • extras – SRPMS was changed to Source as of 6.2
  • centosplus – SRPMS was changed to Source as of 6.2
  • contrib – no SPRMS available yet in 6.5
  • cr – has bounced between SRPMS and Source. None available yet in 6.5
  • fasttrack – has bounced between SRPMS and Source

Newly introduced CentOS 6 repositories that were added after the initial release of CentOS 6:

  • xen4 – x86_64 and Source
  • SCL – x86_64 and Source