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Cisco ATM Services (AXSM) Configuration Guide and Command Reference for MGX Switches
Release 5.2, Part Number OL-6484-01 Rev. C0, September 2005
Chapter 5 AXSM Command Reference
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Depending on the type of AXSM card, the following APS architecture modes (archmode) are supported:
• 1 = 1+1; Provides line redundancy with traffic on both lines
• 2 = 1:1; Provides line redundancy with traffic on the active line only.
• 3 = annexB 1+1
• 4 = ycable 1+1 Annex B
• 5 = straight cable 1+1
Note The GR.253 protocol is supported in modes 1 and 2 on AXSM/A.
Note The GR.253 and the ITU G.841 AnnexA protocols are supported in modes 1 and 2 on AXSM/B,
AXSM-E, and AXSM-XG.
Table 5-1 APS Support on AXSM Cards
Standard
AXSM/A
or
AXSM/B (op A)
1
1. When an AXSM/B card runs in opA mode, it uses one frame only. AXSM/B cards support the same features as AXSM/A card.
AXSM/B (op B)
2
2. When an AXSM/B card runs in opA mode, it uses two framers. AXSM/B cards support the same features as AXSM/A card.
AXSM-E AXSM-XG
GR-253-Core
1:1 Intra-card
Yes Yes Ye s Yes
GR-253-Core
1:1 Inter-card
No No No No
ITU-T G.783 Annex A
1:1 Intra-card
No Ye s Ye s Ye s
ITU-T G.783 Annex A
1:1 Inter-card
No No No No
GR-253-Core
1+1 Intra-card
3
3. For 1:1 intra-card APS, the working and protection lines must be adjacent to each other and on a single back card. The working
line must be an odd-numbered line, the protection line must be an even-numbered line. The protection line number must be
exactly one number higher than the working line’s number. For example, if the working line number is 1.1, then the protection
line number must be 1.2, and so forth. Note that 1:1 intra-card APS is no supported on the AXSM-1-9953-XG, the
AXSM-1-2488, and the AXSM-2-622-E cards.
Yes Yes Ye s Yes
GR-253-Core
1+1 Inter-card
Yes Yes Ye s Yes
ITU-T G.783 Annex A
1+1 Intra-card
No Ye s Ye s Ye s
ITU-T G.783 Annex A
1+1 Inter-card
No Ye s Ye s Ye s
ITU-T G.783 Annex B
1+1 Intra-card
No Ye s Ye s Ye s
ITU-T G.783 Annex B
1+1 Inter-card
No Ye s Ye s Ye s
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