The TELNET pool usage that has met or exceeded a critical threshold. One entry from the TELNET pool is assigned for each TELNET session request. When the pool is exhausted, no more TELNET sessions can be established. SNA over TELNET can quickly exhaust an inadequately sized TELNET pool. Allocating a large TELNET pool has very little cost and is recommended. TELNET pool size is specified in the TCPIP profile.
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