Enterasys Networks CSX6000, CSX5500, CSX7000 manual Reserved Bandwidth, Peer Protocol-Rejects CCP

VERIFYING SYSTEM OPTIONS

Reserved Bandwidth

(I) 15:35:09.98 #80FD: Conn=001 OUT-PPP:CCP				CFG REQ	Id=0xB4 Len=9
(I) 15:35:09.98 #9999: -Alg: 0x11		(STAC-LZS) Len: 5
(I) 15:35:09.98 #9999:	Hist Count: 01		Chk Mode: 0x03		(SEQ#)
(I) 15:35:09.98 #80FD: Conn=001 IN -PPP:CCP				CFG REQ	Id=0x7B Len=9
(I) 15:35:09.98 #9999: -Alg: 0x11		(STAC-LZS) Len: 5
(I) 15:35:09.98 #9999:	Hist Count: 01		Chk Mode: 0x03		(SEQ#)
(I) 15:35:09.99 #80FD: Conn=001 OUT-PPP:CCP				CFG ACK	Id=0x7B Len=9
(I) 15:35:09.99 #9999: -Alg: 0x11		(STAC-LZS) Len: 5
(I) 15:35:09.99 #9999:	Hist Count: 01		Chk Mode: 0x03		(SEQ#)
(I) 15:35:09.99 #80FD: Conn=001 IN -PPP:CCP				CFG ACK	Id=0xB4 Len=9
(I) 15:35:09.99 #9999: -Alg: 0x11		(STAC-LZS) Len: 5
(I) 15:35:09.99 #9999:	Hist Count: 01		Chk Mode: 0x03		(SEQ#)

•Peer Protocol-Rejects CCP

If the peer does not actually support PPP compression, it will most likely Protocol-Reject the CyberSWITCH’s attempt to negotiate CCP. In this case, the CyberSWITCH will abandon its attempt to use compression and the connection will operate uncompressed. The incoming frame from the peer contains a PROT-REJ, whose 1st two hex octets in the trace indicate the CCP protocol (0x80FD).

(I) 16:01:51.65 #80FD: Conn=001 OUT-PPP:CCP							CFG REQ		Id=0x87 Len=9
(I) 16:01:51.65 #9999: -Alg: 0x11				(STAC-LZS) Len: 5
(I) 16:01:51.65 #9999:			Hist Count:		01	Chk	Mode:	0x03	(SEQ#)
(I)	16:01:51.65	#C021: Conn=001 IN -PPP:LCP					PROT REJ Id=0x00 Len=15
(I)	16:01:51.71	#0000:	80 FD 01	87	00	09 11	05 00	01 03

•The CyberSWITCH does not have Compression ENABLED

In this case, the CyberSWITCH will respond to all attempts by the peer to open CCP with a TERM-ACK frame. The connection will operate uncompressed. (Note: a device that supports compression but has it disabled will typically do the exact same thing).

(I) 15:36:40.54 #80FD: Conn=001				IN -PPP:CCP		CFG REQ	Id=0xEC Len=9
(I) 15:36:40.54 #9999: -Alg: 0x11 (STAC-LZS) Len: 5
(I)	15:36:40.54	#9999:	Hist Count: 01		Chk Mode: 0x03		(SEQ#)
(I)	15:36:40.54	#80FD:	Conn=001	OUT-PPP:CCP		TERM ACK Id=0xEC Len=4

RESERVED BANDWIDTH

1.To verify bandwidth reservation, configure several different combinations of lines and devices.

2.Attempt outbound and inbound calls.

3.Verify the proper success and reject of each.

4.If there is a problem, check the configuration of the profiles and how they are assigned to each device (refer to Bandwidth Reservation in the Configuring Call Control chapter).

Central Site Remote Access Switch 463