EXHIBIT 10.19 AMENDMENT NO. 1 TO AGREEMENT RELATING TO EMPLOYMENT AMENDMENT, dated January 14, 1999 by and between NetScout Systems, Inc., a Delaware corporation ("NetScout"), and Narendra Popat, a founder of NetScout ("Mr. Popat"). WHEREAS, the...Agreement Relating to Employment • April 22nd, 1999 • Netscout Systems Inc • Massachusetts
Exhibit 10.17 AMENDMENT NO. 1 TO AGREEMENT RELATING TO EMPLOYMENT AMENDMENT, dated January 14, 1999, by and between NetScout Systems, Inc., a Delaware corporation ("NetScout"), and Anil Singhal, a founder of NetScout ("Mr. Singhal"). WHEREAS, the...Agreement Relating to Employment • April 22nd, 1999 • Netscout Systems Inc • Massachusetts