A-16
Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
AppendixA Technical Specifications
FRSM-HS1/B X.21
FRSM-HS1/B X.21

Interfaces

•Four X.21 lines
•DCE/DTE selection on a per-port basis
•As DCE, clock speeds of 48 Kbps, 56 Kbps, n x 64 Kbps up to 2 Mbps, n x 1.5 Mbps and n x 2 Mbps,
up to 10 Mbps, are s up po r ted
•As DTE, obtains clock from line, up to 10 Mbps
•Supports 1000 DLCIs per card
•Support for per-VC queueing on ingress with closed-loop traffic management
•Support for two priority levels of egress port queues for data traffic
•Various DCE/DTE loopbacks
Number of cells received with CLP bit set
Number of AIS cells received
Number of FERF cells received
Number of BCM cells received
Number of end-to-end loopback cells received
Number of segment loopback c ell s rece ived
Number of OAM cells discarded d ue to CRC-10 error
TableA-21 Diagnostic-Related Statistics
Diagnostic Statistic
Header of last cell with unknown LCN
Header of last received frame with unknown DLCI
ECN current queue depth
TableA-22 Troubleshooting Statisti cs
Troubleshooting Statistic
ECN current queue depth, per channel
TableA-20 ATM Cell-Related Statistics (continued)
ATM Cell Statistic