Chapter 53 Virtual Channel Management Commands
where
<vcprofile> | = | The name of the virtual channel profile (up to 31 ASCII |
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| characters). You cannot change the DEFVAL or |
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| DEFVAL_VC profiles. |
<vcllc> | = | The type of encapsulation (vc or llc). |
<ubrcbr> | = | The ubr (unspecified bit rate) or cbr (constant bit rate) or |
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| ATM traffic class. |
<pcr> | = | Peak Cell Rate (150 to 300000), the maximum rate (cells |
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| per second) at which the sender can send cells. |
[cdvt] | = | Cell Delay Variation Tolerance is the accepted tolerance of |
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| the difference between a cell’s transfer delay and the |
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| expected transfer delay (number of cells). 0 to 255 cells or * |
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| (means 0). |
<vbr(rt- | = | The |
| Rate ATM traffic class. | |
<scr> | = | The Sustained Cell Rate sets the average cell rate (long- |
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| term) that can be transmitted (cells per second). SCR |
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| applies with the vbr traffic class. |
<bt> | = | Burst Tolerance this is the maximum number of cells that |
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| the port is guaranteed to handle without any discards |
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| (number of cells). BT applies with the vbr traffic class. |
This command creates a virtual channel profile. After you create a virtual channel profile, you can assign it to any of the DSL ports on the
The following example creates a virtual channel profile named gold that uses LLC encapsulation. It uses constant bit rate and has the maximum rate (peak cell rate) set to 300,000 cells per second. The acceptable tolerance of the difference between a cell’s transfer delay and the expected transfer delay (CDVT) is set to 5 cells.
Figure 258 Set Virtual Channel Profile Command Example 1
ras> adsl vcprofile set gold llc cbr 300000 5
The following example creates a virtual channel profile named silver that uses VC encapsulation. It uses
Figure 259 Set Virtual Channel Profile Command Example 2
ras> adsl vcprofile set silver vc vbr 250000 5 100000 200
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