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PerilFold: Egypt 27 January 2011 ...more

Egypt fell off the Internet at 22:30 GMT 27 Jan 2011:

Egypt 27 January 2011

Figure 1: Egypt 27 January 2011

Ellipses in these graphs represent servers; boxes represent routers; and arrows show the varying connectivity among them: green is fast, yellow is slow, orange is slower, and red is very slow. Colors of boxes reflect ownership of parts of the network. Times are GMT.

Graphs were produced using PerilScope™, which is InternetPerils' interactive topology examination interface, based upon the GAIN platform.

The red octagons are six destinations InternetPerils was watching. None of them responded directly to probes, but routers along the way to each of them normally responded along paths well into Egypt.

Normal Routing

Everything is still normal at 22:15 GMT 27 Jan 2011 (00:15 28 Jan 2011 Egyptian time), as shown in Figure 2:

27 January 2011 Normal Egyptian Routing

Figure 2: 27 January 2011 Normal Egyptian Routing

Failing Routing

Fifteen minutes later at 22:30, half of the destinations are unreachable, as shown in Figure 3:
27 January 2011 Failing Egyptian Routing

Figure 3: 27 January 2011 Failing Egyptian Routing

Grey lines to the three top red octagons indicate that nothing is responding any farther along paths to those destinations, which are:

websrv.ahram.org.eg 163.121.116.16
www.cbe.org.eg 213.154.54.51
mail.ouda.org.eg 213.212.200.3
The last router responding is 38.97.0.121, on Cogent in Austin, as shown in Figure 4; not very close to Egypt.

27 January 2011 Cogent in Austin to Egypt

Figure 4: 27 January 2011 Cogent in Austin to Egypt

There is also still an attempt to route to mail.ouda.org.eg from one camera through 130.81.19.24, on Verizon in Boston, as shown in Figure 5; also not very close to Egypt.

27 January 2011 Verizon in Boston to Egypt

Figure 5: 27 January 2011 Verizon in Boston to Egypt


One destination, www.assembly.gov.eg 163.121.117.181, still normally routes through 163.121.8.2 in Egypt at 22:15, as shown in Figure 6:
27 January 2011 Normal Egyptian Assembly routing

Figure 6: 27 January 2011 Normal Egyptian Assembly routing


At 22:30, through one path it gets last response from 152.63.30.13, on Verizon near Dulles Airport in Virginia, as shown in Figure 7:
27 January 2011 Verizon Virginia to Egyptian Assembly

Figure 7: 27 January 2011 Verizon Virginia to Egyptian Assembly


This rapid loss of routing matches what RIPE saw in BGP route announcements from Egypt dropping to zero between 22:15 and 22:45 27 Jan 2011.

Last Stop Giza

These last two destinations are routed normally through tedata.net in Giza until 22:30:

Read the complete PerilWatch: Egypt 27 January 2011