Cisco Systems Network Router manual Supported Address Formats

Chapter 3 Address and Closed User Group Planning

Planning Address Configuration Settings

Supported Address Formats

The Cisco MGX and SES switch products support the following standard ATM formats:

•Native E.164

•Data Country Code (DCC)

•International Code Designator (ICD)

•AESA-embedded E.164

•Local AESA

The native E.164 address specifies an Integrated Services Digital Network (ISDN) number and is used by Public Switched Telephone Networks (PSTNs). A native E.164 address has a variable length of up to 15 Binary Coded Decimal (BCD) digits. The other address formats are usually used for private networks. The default address format for the Cisco MGX and SES switch products is the ICD format.

In the PNNI network, native E.164 addresses are mapped to an E.164 AESA format. The native AESA is inserted as a left-justified IDI portion of the AESA, with the semi-octet Hex FFFF padded to form an integral byte at the end. This left-justified rule may be changed to right-justified via CLI if needed.

The substructures of the address formats are transparent to PNNI routing. Figure 3-2shows the substructures of the supported ATM address formats. Table 3-1describes the substructures shown in Figure 3-2.

Figure 3-2 Supported ATM Address Formats

20 bytes

DCC AESA format

(AFI = 39)

ICD AESA format

(AFI = 47)

1		2			10			6	1
AFI			DCC	HO-DSP			ESI		SEL
			IDI			DSP
	IDP
1		2			10			6	1
AFI			ICD	HO-DSP			ESI		SEL
			IDI			DSP
	IDP

Embedded E.164 AESA format (AFI = 45)

Local AESA format

(AFI = 49)

1			8				4			6	1
	AFI	E.164				HO-DSP			ESI		SEL
		IDP
			IDI					DSP
1					12					6	1
	AFI			HO-DSP					ESI		SEL
	IDP					DSP						46511

	Cisco PNNI Network Planning Guide for MGX and SES Products, Release 5
3-4	Part Number OL-3847-01 Rev. D0, April, 2004