Real server group statistics include the following:
Current and total sessions for each real server in the real server group.
Current and total sessions for all real servers associated with the real server group.
Highest number of simultaneous sessions recorded for each real server.
Real server transmit/receive octets. For per-service octet counters, see the procedure on “Per Service Octet Counters” on page 179.
Real server group 1 stats:
Current Total Highest
Real IP address Sessions Sessions Sessions Octets ---- --- --- --- --- --- 1 200.100.10.14 20 60 9 480000 2 200.100.10.15 20 77 12 616000 ---- --- --- --- --- --- 40 137 21 1096000
Alteon OS 22.0.2 Command Reference
Chapter 5: The Statistics Menu 181 315393-J, January 2005
/stats/slb/virt <virtual server number>
Virtual Server SLB Statistics
NOTE – The virtual server IP address is shown on the last line, below the real server IP addresses.
Virtual server statistics include the following:
Current and total sessions for each real server associated with the virtual server.
Current and total sessions for all real servers associated with the virtual server.
Highest number of simultaneous sessions recorded for each real server.
Real server transmit/receive octets. For per-service octet counters, see “Per Service Octet Counters” on page 179.
/stats/slb/filt <filter number>
Filter SLB Statistics
You can obtain the total number of times any filter has been matched.
Virtual server 1 stats:
Current Total Highest
Real IP address Sessions Sessions Sessions Octets
---- --- --- --- --- --- 1 200.100.10.14 20 60 9 480000 2 200.100.10.15 20 77 12 616000 ---- --- --- --- --- --- 200.100.10.20 40 309 21 1096000 Filter 1 stats: Total firings: 1011
182 Chapter 5: The Statistics Menu
315393-J, January 2005
/stats/slb/layer7
SLB Layer7 Statistics Menu
/stats/slb/layer7/redir
Layer7 Redirection Statistics
[Layer 7 Statistics Menu]
redir - Show URL Redirection stats str - Show SLB String stats
maint - Show Layer 7 Maintenance stats
Table 5-33 SLB Layer 7 Statistics Menu Options (/stats/slb/layer7)
Command Syntax & Usage redir
Displays URL Redirection statistics. See page 182 for a sample output. str
Displays SLB string statistics. See page 183 for a sample output. maint
Displays Layer 7 maintenance statistics. See page 184 for a sample output.
Total URL based web cache redirection stats:
Total cache server hits: 0
Total origin server hits: 0
Total straight to origin server hits: 0
Total none-GETs hits: 0
Total 'Cookie: ' hits: 0
Total no-cache hits: 0
Total RTSP cache server hits: 0
Total RTSP origin server hits: 0
Total HTTP redirection hits: 0
Table 5-34 Layer 7 Redirection Statistics (/stats/slb/layer7/redir)
Statistics Description
Total cache server hits The total number of HTTP requests redirected to the cache server. Total origin server hits The total number of HTTP requests forwarded to the origin server. Total straight to ori-
gin server hits
The total number of HTTP requests forwarded from straight to the origin server.
Alteon OS 22.0.2 Command Reference
Chapter 5: The Statistics Menu 183 315393-J, January 2005
/stats/slb/layer7/str
Layer 7 SLB String Statistics
Total 'Cookie:' hits The total number of cookie requests forwarded to the origin server. Total no-cache hits The total number of requests containing no-cache header forwarded
to the origin server. Total RTSP cache
server hits
The total number of RTSP requests redirected to the cache server. Total RTSP origin
server hits
The total number of RTSP requests forwarded to the origin server. Total HTTP redirec-
tion hits
The total number of HTTP requests that were redirected by redirec- tion filter. SLB String stats: ID SLB String Hits 1 any 1527115 2 www.[abcdefghijklm]*.com 0 3 www.[nopqrstuvwxyz]*.com 0 4 www.junk.com 0 5 www.abc.com 0 6 www.[abcdefjhijklm]*.org 0 7 www.[nopqrstuvwxyz]*.org 0
Table 5-35 Layer 7 SLB String Statistics (/stats/slb/layer7/str)
Statistics Description
ID SLB String The user-defined strings being used in URL matching.
Hits The total number of instances that are load-balanced due to matching of the particular URL ID.
Table 5-34 Layer 7 Redirection Statistics (/stats/slb/layer7/redir)
184 Chapter 5: The Statistics Menu
315393-J, January 2005
/stats/slb/layer7/maint
Layer 7 SLB Maintenance Statistics
Layer 7 maintenance stats:Clients reset by switch on client side: 0
Clients reset by switch on server side: 0
Connection Splicing to support HTTP/1.1: 0
Invalid HTTP methods: 0
Aged delayed binding sessions: 0
Half open connections: 0
Switch retries: 0
Random early drops: 0
Requests exceeded 9000 bytes: 0
Invalid 3-way handshakes: 0
Exceeded max frame size: 0
Out of order packet drops: 0
Current SP[1] memory units: 1260 Lowest: 1260
Current SP[2] memory units: 1260 Lowest: 1260
Current SP[3] memory units: 1260 Lowest: 1260
Current SP[4] memory units: 1260 Lowest: 1260
Current SP memory units: 5040
Current SEQ buffer entries: 0 Highest: 0
Current Data buffer use: 0 Highest: 0
Current SP buffer entries: 0 Highest: 0
Total Nonzero SEQ Alloc: 0
Total SEQ Buffer Allocs: 0 Total SEQ Frees: 0
Total Data Buffer Allocs: 0 Total Data Frees: 0
Alloc Fails - Seq buffers: 0 Alloc Fails - Ubufs: 0
Max sessions per bucket: 0 Max frames per session: 0
Max bytes buffered (sess): 0
Table 5-36 SLB Layer 7 Maintenance Statistics (/stats/slb/layer7/maint)
Statistics Description
Clients reset by switch on client side
The number of reset frames sent to the client by the switch during server connection termination. This means that when the switch could not connect to the real sever and the client’s retries exceeded the threshold due to delayed binding, the switch will send a reset frame to the client to terminate the connection.
Clients reset by switch on server side
The number of reset frames sent to the server by the switch during server connection termination due to delayed binding.
Connection Splicing to support HTTP/1.1
The total number of connection swapping between different real servers in supporting multiple HTTP/1.1 client requests.0
Alteon OS 22.0.2 Command Reference
Chapter 5: The Statistics Menu 185 315393-J, January 2005
Invalid HTTP methods The total number of HTTP requests that contain invalid methods sent by the client.
Aged delayed binding sessions
The total number of aged delayed binding sessions caused by failed connection initialization between the switch and the server. Half open connections The total numbers of outstanding TCP connections that are half
opened. It is incremented when the switch responds to TCP SYN packet and decremented upon receiving TCP SYN ACK packet from the requester.
Switch retries The total number of switch retries to connect to the real server. Random early drops The total number of SYN frames dropped when the buffer is low. Requests exceeded 4500
bytes
The total number of GET requests that exceeded 4500 bytes.
Invalid 3-way hand- shakes
The total number of dropped frames because of invalid 3-way hand shakes.
Exceeded max frame size
The total number of switch-generated frames that exceeded the max- imum allowed frame size.
Out of order packet drops:
The total number of TCP packets dropped because they were received out of order.
Current SP memory units
The currently available SP memory units.
Current SEQ buffer entries
The number of outstanding sequence buffers used.
Highest SEQ buffer entries
The highest number of sequence buffers ever used.
Current Data buffer use
The number of outstanding data buffers used.
Highest Data buffer use
The highest number of data buffers ever used.
Total Nonzero SEQ Alloc
The total number of sequence buffer allocated.2
Total SEQ Buffer Allocs
The total number of sequence buffer allocations.
Total SEQ Frees The total number of sequence buffer is freed.
Table 5-36 SLB Layer 7 Maintenance Statistics (/stats/slb/layer7/maint)
186 Chapter 5: The Statistics Menu
315393-J, January 2005