Nortel 5399 User Manual page 32

Chapter 1 Network Administration
Model 5399 Remote Access Concentrator Network Administrator's Guide for UNIX
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Memory Statistics
The netstat –m command displays statistics for the memory management
routines:
annex01# netstat –m
1127/3599 mbufs in use:
7 mbufs allocated to data
2 mbufs allocated to packet headers
9 mbufs allocated to socket structures
14 mbufs allocated to protocol control blocks
3 mbufs allocated to routing table entries
2 mbufs allocated to socket name
2 mbufs allocated to interface address
64 mbufs allocated to incoming network i/f packets
1024 mbufs allocated to SPD Layer RX Data/Status
899 Kbytes allocated to network (31% in use)
0 requests for memory denied
Protocol Statistics
The netstat –s command displays statistics for the following protocols:
ICMP, UDP, TCP, IP, TMux, LAT, and DDP. The LAT statistics display
only if the correct lat_key value is set; TMux statistics display only if the
tmux_enable parameter is set to Y; DDP statistics display only if the
correct option_key value is set. A truncated view looks something like
this:
annex01# netstat –s
tcp:
3097 data packets sent
394865 packets sent
udp:
0 incomplete headers
0 bad data length fields
0 bad checksums
2755 no listening port
77148 packets received
956 packets sent
309577 data packets (1011910 bytes)
87 data packets (22401 bytes) retransmitted
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