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2.4.4. Bandwidth

Network bandwith is important for communication among Satellites, Proxies, and Clients. To accomodate high volume traffic, Red Hat recommends a high bandwidth on a network capable of delivering packages to many systems and clients. As a guide, Red Hat provides a set of estimates for package transfer from one system to another over various speeds.

Table 2.2. Bandwidth estimates
Single Package (10Mb)
Minor Release (750Mb)
Major Release (6Gb)
256Kbps
5 Mins 27 Secs
6 Hrs 49 Mins 36 Secs
2 Days 7 Hrs 55 Mins
512Kbps
2 Mins 43.84 Secs
3 Hrs 24 Mins 48 Secs
1 Day 3 Hrs 57 Mins
T1 (1.5Mbps)
54.33 Secs
1 Hr 7 Mins 54.78 Secs
9 Hrs 16 Mins 20.57 Secs
10Mbps
8.39 Secs
10 Mins 29.15 Secs
1 Hr 25 Mins 53.96 Secs
100Mbps
0.84 Secs
1 Min 2.91 Secs
8 Mins 35.4 Secs
1000Mbps
0.08 Secs
6.29 Secs
51.54 Secs
Red Hat recommends at least a 100Mbps network speed for minor and major releases. This avoids timeouts for transfers longer than 10 minutes. All speeds are relative to your network setup.