/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 18200 bytes: 0
Invalid 3-way handshakes: 1
Exceeded max frame size: 0
Out of order packet drops: 0
Out of order packets received: 0
Current SP memory units:       10082 Lowest: 10082
Current SP memory units: 5158
Current SEQ buffer entries: 0 Highest: 0
Current Data buffer use: 0 Highest: 1
Current SP buffer entries: 0 Highest: 1
Total Nonzero SEQ Alloc: 0
Total SEQ Buffer Allocs: 0 Total SEQ Frees: 0
Total Data Buffer Allocs: 1 Total Data Frees: 1
Alloc Fails - Seq buffers: 0 Alloc Fails - Ubufs: 0
Max sessions per bucket: 0 Max frames per session: 0
Max bytes buffered (sess): 0
SLB Layer 7 maintenance statistics are described in the following table:
 
SLB Layer 7 Maintenance Statistics (/stats/slb/layer7/maint) 
Statistic
Description
Clients reset by switch on client side
The number of reset frames sent to the client by Alteon during server connection termination. This means that when Alteon could not connect to the real sever and the client’s retries exceeded the threshold due to delayed binding, Alteon sends 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 Alteon during server connection termination due to delayed binding.
Connection Splicing to support HTTP/1.1
The number of connection swapping between different real servers in supporting multiple HTTP/1.1 client requests.
Invalid HTTP methods
The number of HTTP requests that contain invalid methods sent by the client.
Aged delayed binding sessions
The number of aged delayed binding sessions caused by failed connection initialization between Alteon and the server.
Half open connections
The number of outstanding TCP connections that are half opened. This increments when Alteon responds to TCP SYN packets and decrements upon receiving TCP SYN ACK packets from the requester.
Switch retries
The number of Alteon retries to connect to the real server.
Random early drops
The number of SYN frames dropped when the buffer is low.
Requests exceeded 18200 bytes
The number of GET requests that exceeded 18200 bytes.
Invalid 3-way handshakes
The number of dropped frames because of invalid three-way hand shakes.
Exceeded max frame size
The number of Alteon-generated frames that exceeded the maximum allowed frame size.
Out of order packet drops
The number of TCP out of order packets dropped.
Out of order packets received
The number of TCP out of order packets received.
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 number of sequence buffers allocated.
Total SEQ Buffer Allocs
The number of sequence buffers allocations.
Total SEQ Frees
The number of sequence buffers that are freed.
Total Data Buffer Allocs
The number of buffers allocated to store client request.
Total Data Frees
The number of buffers freed.
Alloc Fails - Seq buffers
The number of times the sequence buffer allocation failed.
Alloc Fails - Ubufs
The number of times the URL data buffer allocation failed.
Max sessions per bucket
The maximum number of items (sessions) allowed in the session table hash bucket chain.
Max frames per session
The maximum number of frames to be buffered per session.
Max bytes buffered (sess)
The maximum number of bytes to be buffered per session.