EXFO FTB-8500 Series for FTB-500 - Manual (Page 512)

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498 FTB-8500 Series and FTB-8120NGE/8130NGE
MPLS Configuration
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COS/EXP (Class Of Service / Experimental): Select the class of service.
The default value is 0 (0000 - Low).
0 (000 - Low)
1 (001 - Low)
2 (010 - Low)
3 (011 - Low)
4 (100 - High)
5 (101 - High)
6 (110 - High)
7 (111 - High)
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TTL (Time To Live): Select the TTL value. Choices are 0 to 255. The
default setting is 128.
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